panfrost: Use DBG macro to avoid noise in the console

It pollutes the output of programs that use Panfrost and can confuse its
callers, such as test runners.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3625>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3625>
6 files changed