This partially reverts commit ade163aaae.
The DCN315 DMCUB firmware update provided by the aforementioned commit
wasn't thoroughly tested before being sent for public consumption and as
such there are a number of issues with it. So, revert to the previous
version until it can be fixed properly.
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2666
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>