Commonly /tmp is set as noexec, as a result packer scripts
fail to run. In order to get around this one can set a
remote_path, whoever, remote path requires full filename
and path.
By making remote_path a combination of
remote_folder/remote_script we can change remote_folder
and keep the default script_nnn.sh
Signed-off-by: Ian Duffy <ian@ianduffy.ie>