UPSTREAM: dri_util: Update internal_format to GL_RGB8 for MESA_FORMAT_B8G8R8X8_UNORM

Port the change done for RGBX8888 in
02a1f95386b43bf46cd1c8297d0955242f554fa2.

If XR24 images are considered to be VIEW_CLASS_24_BITS-compatible, it's
reasonable to assume that XB24 images would be as well.

Fixes: bf576772ab4d ("dri_util: add driImageFormatToSizedInternalGLFormat function")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6095>
(cherry picked from commit 8abf59ff98863634321e3e0d60035277e58e92e8)

BUG=b:169576243
TEST=Run null_platform_test -f XR30 on Zork

Change-Id: I45c4c9176d1d5669de39a6832e1349678b7f7780
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/mesa/+/2436532
Tested-by: Bas Nieuwenhuizen <basni@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Commit-Queue: Bas Nieuwenhuizen <basni@chromium.org>
1 file changed