[Why]
To move the PSR DPCD caps detection into detect_edp_sink_caps()
Reviewed-by: NAnthony Koo <Anthony.Koo@amd.com>
Acked-by: NSolomon Chiu <solomon.chiu@amd.com>
Signed-off-by: NPo Ting Chen <robin.chen@amd.com>
Tested-by: NDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>