lima: add RGBA5551 and RGBA4444 formats

We also need to set channel_layout in pp_frame reg (previously known as
foureight) depending on cbuf format.

Reviewed-by: Andreas Baierl <ichgeh@imkreisrum.de>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3972>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3972>
4 files changed