drm/amd/display: disable adaptive scaler and sharpener when integer scaling is enabled
[Why & How]
When integer scaling is enabled, set taps to 1 and disable adaptive
scaler and sharpener.
Reviewed-by: Jun Lei <jun.lei@amd.com> Signed-off-by: Samson Tam <Samson.Tam@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>