dril: also create double-buffered configs in swrast fallback
What does this MR do and why?
dril: also create double-buffered configs in swrast fallback
Fixes: 06d417af80b ("dril: use the super fallback path for software fallback")Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.