panfrost: Fix AFBC on Bifrost v6

The AFBC layout of RT/ZS-extension descriptors on Bifrost v6 matches the
v7 one except for the Block Format field. Update the set_buf() functions
accordingly.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8328>
1 file changed