As of 2018/11/30 EXT_texture_sRGB_R8 is also a valid extension for
desktop GL. Hence, move the format into the joined list so that
it can be picked up if the D-GL host supports it.
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>