builder/azure-arm: Set WinRMPassword on the communicator config

Build results before change
```
azure-arm: output will be in this color.

==> azure-arm: Running builder ...
azure-arm:
==> azure-arm: Provisioning with Powershell...
==> azure-arm: Provisioning with powershell script:
/tmp/powershell-provisioner922851060
==> azure-arm: Exception calling "RegisterTaskDefinition" with "7" argument(s): "(38,4):Task:"
==> azure-arm: At C:\Windows\Temp\packer-elevated-shell-5e320d29-bdbd-b619-9e64-0c8a301b9d1d.p
==> azure-arm: s1:60 char:1 ==> azure-arm: + $f.RegisterTaskDefinition($name, $t, 6,
"packer", $password, $logon_type,
==> azure-arm: $null) ...
==> azure-arm: +
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
==> azure-arm: ~~~
==> azure-arm:     + CategoryInfo          : NotSpecified:
(:) [], MethodInvocationException
==> azure-arm:     + FullyQualifiedErrorId :
ComMethodTargetInvocation
==> azure-arm:
==> azure-arm: Exception calling "GetTask" with "1"
argument(s): "The system cannot find the
==> azure-arm: file specified. (Exception from HRESULT:
0x80070002)"
==> azure-arm: At
C:\Windows\Temp\packer-elevated-shell-5e320d29-bdbd-b619-9e64-0c8a301b9d1d.p
==> azure-arm: s1:61 char:1
==> azure-arm: + $t = $f.GetTask("\$name")
==> azure-arm: + ~~~~~~~~~~~~~~~~~~~~~~~~~
==> azure-arm:     + CategoryInfo          : NotSpecified:
(:) [], MethodInvocationException
==> azure-arm:     + FullyQualifiedErrorId :
ComMethodTargetInvocation
==> azure-arm:
==> azure-arm: Method invocation failed because
[System.__ComObject] does not contain a
==> azure-arm: method named 'Run'.
==> azure-arm: At
C:\Windows\Temp\packer-elevated-shell-5e320d29-bdbd-b619-9e64-0c8a301b9d1d.p
==> azure-arm: s1:62 char:1
==> azure-arm: + $t.Run($null) | Out-Null
==> azure-arm: + ~~~~~~~~~~~~~~~~~~~~~~~~
==> azure-arm:     + CategoryInfo          :
InvalidOperation: (Run:String) [], RuntimeExcept
==> azure-arm:    ion
==> azure-arm:     + FullyQualifiedErrorId : MethodNotFound
==> azure-arm:
Cancelling build after receiving interrupt
==> azure-arm: Removing the created Deployment object:
'pkrdp087bb80ibj'
==> azure-arm: Removing the created Deployment object:
'kvpkrdp087bb80ibj'
==> azure-arm:
==> azure-arm: Cleanup requested, deleting resource group
...
==> azure-arm: Resource group has been deleted.
Build 'azure-arm' errored: Build was cancelled.
Cleanly cancelled builds after being interrupted.
```

Build results after change
```
azure-arm: WinRM connected.
==> azure-arm: <Objs Version="1.1.0.1"
xmlns="http://schemas.microsoft.com/powershell/2004/04"><Obj S="progress" RefId="0"><TN RefId="0"><T>System.Management.Automation.PSCustomObject</T><T>System.Object</T></TN><MS><I64
N="SourceId">1</I64><PR N="Record"><AV>Preparing modules for first use.</AV><AI>0</AI><Nil /><PI>-1</PI><PC>-1</PC><T>Completed</T><SR>-1</SR><SD> </SD></PR></MS></Obj><Obj S="progress" RefId="1"><TNRef RefId="0" /><MS><I64 N="SourceId">2</I64><PR N="Record"><AV>Preparing modules for first use.</AV><AI>0</AI><Nil /><PI>-1</PI><PC>-1</PC><T>Completed</T><SR>-1</SR><SD> </SD></PR></MS></Obj><Obj S="progress" RefId="2"><TNRef RefId="0" /><MS><I64 N="SourceId">3</I64><PR N="Record"><AV>Preparing modules for first use.</AV><AI>0</AI><Nil /><PI>-1</PI><PC>-1</PC><T>Completed</T><SR>-1</SR><SD> </SD></PR></MS></Obj></Objs>
==> azure-arm: Connected to WinRM!
==> azure-arm: Running local shell script:
/tmp/packer-shell091779215 azure-arm: 022xUtbwAH3DdqIoRCOh9caZi8tOYqcY
==> azure-arm: Provisioning with Powershell...
==> azure-arm: Provisioning with powershell script: /tmp/powershell-provisioner469853889
azure-arm: HELLO NEW USER; automatically generated aws password is: 022xUtbwAH3DdqIoRCOh9caZi8tOYqcY
==> azure-arm: Querying the machine's properties ...
```

builder/azure/arm/builder.go

@@ -166,7 +166,6 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 	b.setRuntimeParameters(b.stateBag)
 	b.setTemplateParameters(b.stateBag)
 	b.setImageParameters(b.stateBag)
-	var steps []multistep.Step
 
 	deploymentName := b.stateBag.Get(constants.ArmDeploymentName).(string)
 
@@ -195,6 +194,7 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 		b.stateBag.Put(constants.ArmManagedImageSharedGalleryReplicationRegions, b.config.SharedGalleryDestination.SigDestinationReplicationRegions)
 	}
 
+	var steps []multistep.Step
 	if b.config.OSType == constants.Target_Linux {
 		steps = []multistep.Step{
 			NewStepCreateResourceGroup(azureClient, ui),
@@ -240,7 +240,7 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 				WinRMConfig: func(multistep.StateBag) (*communicator.WinRMConfig, error) {
 					return &communicator.WinRMConfig{
 						Username: b.config.UserName,
-						Password: b.config.tmpAdminPassword,
+						Password: b.config.Comm.WinRMPassword,
 					}, nil
 				},
 			},

builder/azure/arm/config.go

@@ -640,8 +640,13 @@ func setUserNamePassword(c *Config) {
 
 	if c.Comm.SSHPassword != "" {
 		c.Password = c.Comm.SSHPassword
-	} else {
+		return
-		c.Password = c.tmpAdminPassword
+	}
+
+	// Configure password settings using Azure generated credentials
+	c.Password = c.tmpAdminPassword
+	if c.Comm.WinRMPassword == "" {
+		c.Comm.WinRMPassword = c.Password
 	}
 }