Read DP_SINK_PR_PIXEL_DEVIATION_PER_LINE  and
DP_SINK_PR_MAX_NUMBER_OF_DEVIATION_LINE
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>