radv: Respect alignment requirements in descriptor set layouts

Previously, ycbcr samplers were tightly packed with 4-byte alignment,
but the structure requires 8-byte alignment. These samplers are now padded
to 8-byte boundaries instead.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6728>
1 file changed