[Mono] System.Reflection.Metadata.Tests.MetadataReaderTests.GetAssemblyName is failing

[simonrozsival]

The changes in #80581 cause the rolling build of runtime-extra-platforms to fail.

Ref #77697

On android-arm64, android-arm, tvos-arm64:

Assert.Equal() Failure
Expected: MSIL
Actual:   None

Stack trace
   at System.Reflection.Metadata.Tests.MetadataReaderTests.GetAssemblyName() in /_/src/libraries/System.Reflection.Metadata/tests/Metadata/MetadataReaderTests.cs:line 3098
   at System.Reflection.MethodInvoker.InterpretedInvoke(Object obj, IntPtr* args)
   at System.Reflection.MethodInvoker.Invoke(Object obj, IntPtr* args, BindingFlags invokeAttr)

On android-x64, tvossimulator-x64:

Assert.Equal() Failure
Expected: MSIL
Actual:   Amd64

On android-x86:

Assert.Equal() Failure
Expected: MSIL
Actual:   X86

[jkotas]

cc @VSadov

[VSadov]

This could be a result of intentional simplification of the ProcessorArchitecture computation. I will take a look.

[VSadov]

Actually it looks like new test scenarios. Possibly a test issue.