Update WindowsApplicationPackaging.wapproj

Author: lukaslangrock

src/WindowsApplicationPackaging/WindowsApplicationPackaging.wapproj

@@ -58,7 +58,7 @@
     <GenerateAppInstallerFile>False</GenerateAppInstallerFile>
     <AppxAutoIncrementPackageRevision>False</AppxAutoIncrementPackageRevision>
     <GenerateTestArtifacts>True</GenerateTestArtifacts>
-    <AppxBundlePlatforms>neutral</AppxBundlePlatforms>
+    <AppxBundlePlatforms>x86|x64|arm|arm64</AppxBundlePlatforms>
     <HoursBetweenUpdateChecks>0</HoursBetweenUpdateChecks>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">