ac: fix detection of Pro graphics

Fixes: bfb928759 "ac: add radeon_info::is_pro_graphics"

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7542>
(cherry picked from commit b635dff25620b948080d31211ca487a71203af4d)
2 files changed