amd/common: Add modifier tests.

amd/common: Add modifier tests.

This primarily tests that:
 - multiple GPUs with the same GPU modifier parameters result
   in the same tiling layout.
 - The size & alignment calculations don't change for a given
   modifier & image parameters.

It does this primarily based on addrlib. Radeonsi has used addrlib
for the retiling of displayable DCC for a while already, so the
DCC tiling should be pretty reliable.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6176>