Add tests to the lstFile so they can be run in automation.

[tannergooding]

As per the comment from @jashook here: dotnet/coreclr#15771 (review)

[tannergooding]

FYI. @jashook, @CarolEidt.

It sounds like this might be a more general work item, rather than specific to just the hardware intrinsics.

[jashook]

Correct assigned to myself, thanks for opening

[jashook]

Lst files are no longer supported.