[workloads] Don't load mono librarymode targets if PublishAot is set (#…

…103777)

This change removes the incorrect error message when you using NativeAOT library mode
on mobile and you have `<NativeLib>` set. Previously, it would only detect if `<NativeLib>` was
set and error out if you didn't install the library builder workload. That only applies if mono
is your target.

src/mono/nuget/Microsoft.NET.Workload.Mono.Toolchain.Current.Manifest/WorkloadManifest.targets.in

@@ -65,7 +65,8 @@
     <UsingBrowserRuntimeWorkload Condition="'$(UsingBrowserRuntimeWorkload)' == ''">$(WasmNativeWorkloadAvailable)</UsingBrowserRuntimeWorkload>
   </PropertyGroup>
 
-  <PropertyGroup Condition="'$(NativeLib)' != ''">
+  <!-- Mono AOT library mode support -->
+  <PropertyGroup Condition="'$(PublishAot)' != 'true' and '$(NativeLib)' != ''">
     <_IsAndroidLibraryMode Condition="'$(RuntimeIdentifier)' == 'android-arm64' or '$(RuntimeIdentifier)' == 'android-arm' or '$(RuntimeIdentifier)' == 'android-x64' or '$(RuntimeIdentifier)' == 'android-x86'">true</_IsAndroidLibraryMode>
     <_IsAppleMobileLibraryMode Condition="'$(RuntimeIdentifier)' == 'ios-arm64' or '$(RuntimeIdentifier)' == 'iossimulator-arm64' or '$(RuntimeIdentifier)' == 'iossimulator-x64' or '$(RuntimeIdentifier)' == 'maccatalyst-arm64' or '$(RuntimeIdentifier)' == 'maccatalyst-x64' or '$(RuntimeIdentifier)' == 'tvos-arm64'">true</_IsAppleMobileLibraryMode>
     <_IsiOSLibraryMode Condition="'$(RuntimeIdentifier)' == 'ios-arm64' or '$(RuntimeIdentifier)' == 'iossimulator-arm64' or '$(RuntimeIdentifier)' == 'iossimulator-x64'">true</_IsiOSLibraryMode>