Revert NuGet restore TFM to uap10.1

Commit migrated from https://github.com/dotnet/core-setup/commit/7587a4184423df408793185d737a9fd3c9cd45ad

src/installer/pkg/projects/Microsoft.NETCore.UniversalWindowsPlatform/src/Microsoft.NETCore.UniversalWindowsPlatform.depproj

@@ -7,8 +7,8 @@
     <!-- we don't want any analyzers by ResolveNuGetPackageAssets 
          null-refs when this isn't set and an analyzer is in the packages -->
     <Language>unused</Language>
-    <NuGetTargetMoniker>UAP,Version=v10.0.15138</NuGetTargetMoniker>
-    <NuGetTargetMonikerShort>uap10.0.15138</NuGetTargetMonikerShort>
+    <NuGetTargetMoniker>UAP,Version=v10.1</NuGetTargetMoniker>
+    <NuGetTargetMonikerShort>uap10.1</NuGetTargetMonikerShort>
     <PackageTargetFramework>uap10.0.15138</PackageTargetFramework>
     <PrimaryPackage>Microsoft.Private.CoreFx.UAP</PrimaryPackage>
     <ContainsPackageReferences>true</ContainsPackageReferences>