ci: Extend meson-clang coverage by compiling all gallium drivers

Some compile-time regressions go unnoticed because not all gallium
drivers are compiled as part of the meson-clang job. Let's pass an
explicit list of drivers to compile instead of setting GALLIUM_DRIVERS
to "auto" to increase CI coverage.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6811>
1 file changed