freedreno/ir3/validate: add checking for types and opcodes

freedreno/ir3/validate: add checking for types and opcodes

For cases where instructions have a src and/or dst type, validate that
it matches the src/dst register types.  And for cases where there are
different opcodes for half vs full, validate that the opcode matches.

Now that we maintain this properly throughout the stages of the ir, we
can drop the fixups from the RA pass.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5048>