[dotnet] Fix paths to the zipped prebuilt app bundle. (#21818)

This is a follow-up to b4ba75d.

dotnet/Makefile

@@ -58,7 +58,7 @@ $(foreach platform,$(DOTNET_WINDOWS_PLATFORMS),$(eval $(call DefineWindowsTarget
 ifdef INCLUDE_HOTRESTART
 
 iOS_WINDOWS_NUGET_TARGETS += \
-	$(DOTNET_DESTDIR)/$(IOS_NUGET_WINDOWS_SDK_NAME)/tools/msbuild/Xamarin.PreBuilt.iOS.app.zip \
+	$(DOTNET_DESTDIR)/$(IOS_NUGET_WINDOWS_SDK_NAME)/tools/msbuild/iOS/Xamarin.PreBuilt.iOS.app.zip \
 
 endif
 
@@ -507,7 +507,7 @@ clean-local::
 	$(Q) $(DOTNET) restore package/workaround-for-maccore-issue-2427/restore.csproj /bl:package/workaround-for-maccore-issue-2427/restore.binlog $(MSBUILD_VERBOSITY)
 	$(Q) touch $@
 
-$(DOTNET_DESTDIR)/$(IOS_NUGET_WINDOWS_SDK_NAME)/tools/msbuild/Xamarin.PreBuilt.iOS.app.zip: .stamp-install-workloads
+$(DOTNET_DESTDIR)/$(IOS_NUGET_WINDOWS_SDK_NAME)/tools/msbuild/iOS/Xamarin.PreBuilt.iOS.app.zip: .stamp-install-workloads
 	$(Q) $(MAKE) -C $(TOP)/msbuild/Xamarin.HotRestart.PreBuilt all
 	$(Q) touch $@
 

dotnet/Workloads/SignList.xml

@@ -3,17 +3,17 @@
   <ItemGroup>
     <Skip Include="System.Reflection.MetadataLoadContext.dll" />
     <!-- Microsoft.iOS.Windows.Sdk content -->
-    <Skip Include="tools\msbuild\Microsoft.Win32.Registry.dll" />
-    <Skip Include="tools\msbuild\System.Buffers.dll" />
-    <Skip Include="tools\msbuild\System.Formats.Asn1.dll" />
-    <Skip Include="tools\msbuild\System.Memory.dll" />
-    <Skip Include="tools\msbuild\System.Numerics.Vectors.dll" />
-    <Skip Include="tools\msbuild\System.Runtime.CompilerServices.Unsafe.dll" />
-    <Skip Include="tools\msbuild\System.Security.AccessControl.dll" />
-    <Skip Include="tools\msbuild\System.Security.Cryptography.Pkcs.dll" />
-    <Skip Include="tools\msbuild\System.Security.Cryptography.ProtectedData.dll" />
-    <Skip Include="tools\msbuild\System.Security.Principal.Windows.dll" />
-    <Skip Include="tools\msbuild\ws2_32.dll" />
+    <Skip Include="tools\msbuild\iOS\Microsoft.Win32.Registry.dll" />
+    <Skip Include="tools\msbuild\iOS\System.Buffers.dll" />
+    <Skip Include="tools\msbuild\iOS\System.Formats.Asn1.dll" />
+    <Skip Include="tools\msbuild\iOS\System.Memory.dll" />
+    <Skip Include="tools\msbuild\iOS\System.Numerics.Vectors.dll" />
+    <Skip Include="tools\msbuild\iOS\System.Runtime.CompilerServices.Unsafe.dll" />
+    <Skip Include="tools\msbuild\iOS\System.Security.AccessControl.dll" />
+    <Skip Include="tools\msbuild\iOS\System.Security.Cryptography.Pkcs.dll" />
+    <Skip Include="tools\msbuild\iOS\System.Security.Cryptography.ProtectedData.dll" />
+    <Skip Include="tools\msbuild\iOS\System.Security.Principal.Windows.dll" />
+    <Skip Include="tools\msbuild\iOS\ws2_32.dll" />
     <!-- Broker.zip -->
     <Skip Include="Broker\Newtonsoft.Json.dll" />
     <Skip Include="Broker\System.Net.Mqtt.dll" />