freedreno: drop shader_t

When this code was outside of the mesa tree, we needed our own enum.
Now we can use a common one, to simplify deduplicating the disasm
code.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6070>
5 files changed