drm/amd/display: add set dp lane settings to link_hwss
[why]
Factor set dp lane settings to link_hwss.
v2: fix statement with no effect warning (Alex)
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
authored by