isaspec: Sort labels with same output
What does this MR do and why?
isaspec: Sort labels with same output
In order to get stable results from qsort() across different versions of
libc, toolchain, etc., sort labels with the same offset alphabetically.
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/10217
Signed-off-by: Rob Clark <robdclark@chromium.org>