drm/amd/display: Enable additional wait for pipe pending checks

drm/amd/display: Enable additional wait for pipe pending checks

[why]
In cases where there are two FULL updates within the same display frame,
it's possible for some blocks to be programmed a second time without having
been latched completely from the first programming.

DCN 3.5 and up already work around this with additional validation checks
for frame count and defer as needed via fsleep.

[how]
Enabled existing pipe checks generically for all DCN versions to avoid HW
programming hazards.

Also removed redundant max_frame_count which can be determined by the
register mask and shift.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Aric Cyr <Aric.Cyr@amd.com>
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>