st/mesa: remove the switch from st_validate_state by passing state mask directly

st/mesa: remove the switch from st_validate_state by passing state mask directly

Instead of passing the enum that represents which states should be updated
to st_validate_state, pass the state bitmask to st_validate_state directly.
This removes the switch statement over the enums.

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19953>