freedreno: update generated headers

Signed-off-by: Rob Clark <robclark@freedesktop.org>
freedreno/a3xx/compiler: refactor trans_samp()

Split it up into some smaller fxns so it doesn't grow into a huge
monster as we add things.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
freedreno/a3xx: shadow sampler support

Signed-off-by: Rob Clark <robclark@freedesktop.org>