drm/i915/dp_mst: Enable LT fallback between UHBR/non-UHBR link rates

Enable switching between UHBR and non-UHBR link rates on MST links when
reducing the link parameters after an LT failure.
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240722165503.2084999-15-imre.deak@intel.com

drivers/gpu/drm/i915/display/intel_dp_link_training.c

@@ -1188,11 +1188,6 @@ static bool reduce_link_params_in_bw_order(struct intel_dp *intel_dp,
 		     intel_dp->link.force_lane_count != lane_count))
 			continue;
 
-		/* TODO: Make switching from UHBR to non-UHBR rates work. */
-		if (drm_dp_is_uhbr_rate(crtc_state->port_clock) !=
-		    drm_dp_is_uhbr_rate(link_rate))
-			continue;
-
 		break;
 	}