Adding support for win arm64 builds

.vsts-ci.yml

@@ -68,6 +68,10 @@ stages:
             _BuildConfig: Release
             _BuildArchitecture: arm
             _DOTNET_CLI_UI_LANGUAGE: ''
+          Build_Release_arm64:
+            _BuildConfig: Release
+            _BuildArchitecture: arm64
+            _DOTNET_CLI_UI_LANGUAGE: ''
 
   - template: /eng/build.yml
     parameters:

src/redist/targets/Crossgen.targets

@@ -1,6 +1,6 @@
 <Project>
   <Target Name="CrossgenLayout"
-          Condition="'$(DISABLE_CROSSGEN)' == ''"
+          Condition="'$(DISABLE_CROSSGEN)' == '' and !('$(Architecture)' == 'arm64' and '$(OSName)' == 'win')"
           DependsOnTargets="SetSdkBrandingInfo">
     
     <PropertyGroup>

src/redist/targets/GenerateLayout.targets

@@ -283,7 +283,7 @@
 
     <PropertyGroup>
       <IncludeWpfAndWinForms Condition=" '$(IncludeWpfAndWinForms)' == '' AND '$(Architecture)' == 'arm'">false</IncludeWpfAndWinForms>
-      <IncludeWpfAndWinForms Condition=" '$(IncludeWpfAndWinForms)' == '' AND '$(OS)' == 'Windows_NT' ">true</IncludeWpfAndWinForms>
+      <IncludeWpfAndWinForms Condition=" '$(IncludeWpfAndWinForms)' == '' AND '$(OS)' == 'Windows_NT' AND '$(Architecture)' != 'arm64' ">true</IncludeWpfAndWinForms>
       <IncludeWpfAndWinForms Condition=" '$(IncludeWpfAndWinForms)' == '' ">false</IncludeWpfAndWinForms>
     </PropertyGroup>