aco/wave32: Add wave size specific opcodes to aco_builder.

aco/wave32: Add wave size specific opcodes to aco_builder.

Several places in ACO we use SOP1 or SOP2 instructions to operate over the
exec mask or VCC, and these need to be adapted to the new size in wave32
mode.

This commit adds a way to deal with this problem in aco_builder: the caller
can specify a wave size specific opcode and the builder will translate that
to the correct opcode based on the current wave size.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>