Add undocumented attribute to disable generation of Java bindings fro…

…m the Android AAR. (#12075)

The generated bindings causes C# build errors that require workaround code. Disabling generation should avoid the need for any workarounds.

As the user has the C# ORT package with the C# to C bindings there's no need for binding generation that calls the ORT Java API (which is C# -> Java ->C).

csharp/src/Microsoft.ML.OnnxRuntime/targets/net6.0-android/targets.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
     <ItemGroup Condition=" '$(AndroidApplication)'=='true' ">
-        <AndroidLibrary Include="$(MSBuildThisFileDirectory)..\..\runtimes\android\native\*">
+        <AndroidLibrary Bind="false" Include="$(MSBuildThisFileDirectory)..\..\runtimes\android\native\*">
             <Link>%(Filename)%(Extension)</Link>
         </AndroidLibrary>
     </ItemGroup>