gitlab-ci: merge several meson jobs

Merge the following into `meson-main`/`meson-loader-classic-dri`/
`meson-gallium-swr`:
- meson-vulkan
- meson-gallium-drivers-other
- meson-gallium-st-other

Signed-off-by: Eric Engestrom <[email protected]>

[ Michel Dänzer ]
* Rebase and fix up commit log.
* Don't set VULKAN_DRIVERS in meson-loader-classic-dri.
* Remove extraneous whitespace.
* Squash in follow-up fixes.

Signed-off-by: Michel Dänzer <[email protected]>

[ anholt]
* Add a note why nine and swrast landed where they did.
* Switch from s/meson-vulkan/meson-main/ to
  s/meson-loader-classic-dri/meson-main/ which I think was the original
  intent

Reviewed-by: Eric Anholt <[email protected]>
Acked-by: Eric Engestrom <[email protected]> (anholt changes)
Acked-by: Dylan Baker <[email protected]>

0 files changed, 0 insertions, 0 deletions