treewide: spelling fixes
Debian's lintian tool flagged some spelling issues:
assumtion -> assumption
unkown -> unknown
memeber -> member
sucess -> success
perfomance -> performance
Signed-off-by: Diederik de Haas didi.debian@cknow.org
As I don't know it's impact, I didn't change the following:
- _mesa_free_perfomance_monitor_groups(ctx) and
- _mesa_free_perfomance_monitor_groups(struct gl_context *ctx);