Fix: use IntermediateOutputPath for typemap output directory

Use $(IntermediateOutputPath) instead of manually constructing the path
from $(BaseIntermediateOutputPath)$(Configuration)/$(TargetFramework)/.
The manual construction breaks when AppendTargetFrameworkToOutputPath
is false, as in the test infrastructure.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: simonrozsival

src/Xamarin.Android.Build.Tasks/Microsoft.Android.Sdk/targets/Microsoft.Android.Sdk.TypeMap.Trimmable.targets

@@ -11,7 +11,7 @@
 
   <PropertyGroup>
     <_TypeMapAssemblyName>_Microsoft.Android.TypeMaps</_TypeMapAssemblyName>
-    <_TypeMapBaseOutputDir>$(BaseIntermediateOutputPath)$(Configuration)/$(TargetFramework)/</_TypeMapBaseOutputDir>
+    <_TypeMapBaseOutputDir>$(IntermediateOutputPath)</_TypeMapBaseOutputDir>
     <_TypeMapBaseOutputDir>$(_TypeMapBaseOutputDir.Replace('\','/'))</_TypeMapBaseOutputDir>
     <_TypeMapOutputDirectory>$(_TypeMapBaseOutputDir)typemap/</_TypeMapOutputDirectory>
     <_TypeMapJavaOutputDirectory>$(_TypeMapBaseOutputDir)typemap/java</_TypeMapJavaOutputDirectory>