runtime: always mark assembly file as non-executable stack
runtime: always mark assembly file as non-executable stack

For https://gcc.gnu.org/PR92820.

Change-Id: Ied403e39935b143148cca5fa0ed3f701d70f9c17
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/210037
Reviewed-by: Cherry Zhang <d62e63aa42ce272d7b6a5055d97e942b33a34679@google.com>

golang/gofrontend,golang/gofrontend,golang/gofrontend,golang/gofrontend