drm/amd/display: PSR Aux Channel and Static Screen Support Fix

- Correct the aux channel selection according to DAL3
Signed-off-by: NAmy Zhang <Amy.Zhang@amd.com>
Acked-by: NHarry Wentland <Harry.Wentland@amd.com>
Reviewed-by: NTony Cheng <Tony.Cheng@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/core/dc_link.c

@@ -1482,8 +1482,6 @@ bool dc_link_setup_psr(const struct dc_link *dc_link,
 			sizeof(psr_configuration.raw));
 
 		psr_context.channel = link->ddc->ddc_pin->hw_info.ddc_channel;
-		if (psr_context.channel == 0)
-			psr_context.channel = 1;
 		psr_context.transmitterId = link->link_enc->transmitter;
 		psr_context.engineId = link->link_enc->preferred_engine;