gitlab-ci: Enable more Gallium drivers in meson-i386 job

These are the ones which can be enabled with the current x86_build
docker image and which build without warnings.

Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4166>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4166>
1 file changed