Backport of "glx: Iterate over FBConfig and select 8 bit color size" into 1.18
Backport of !410 (merged) "glx: Iterate over FBConfig and select 8 bit color size".
Commits:
- c4e76d6f glx: Iterate over FBConfig and select 8 bit color size
Backport of !410 (merged) "glx: Iterate over FBConfig and select 8 bit color size".
Commits: