fix(compiler): suppress another closure warning (#16137)

closure compiler warns in generated .ngfactory.ts files:
```
WARNING - property createInternal already defined on superclass module$contents$..$core$src$linker$ng_module_factory_NgModuleInjector; use @override to override it
```

PR Close #16137

packages/compiler-cli/src/codegen.ts

@@ -24,7 +24,7 @@ const GENERATED_META_FILES = /\.json$/;
 const PREAMBLE = `/**
  * @fileoverview This file is generated by the Angular template compiler.
  * Do not edit.
- * @suppress {suspiciousCode,uselessCode,missingProperties}
+ * @suppress {suspiciousCode,uselessCode,missingProperties,missingOverride}
  */
  /* tslint:disable */