drm/amd/display: HDR visual confirmation incorrectly reports black color

[Why]
Checking against a TF that is unused causes us to default to black

[How]
Check against PQ instead
Signed-off-by: NMurton Liu <murton.liu@amd.com>
Reviewed-by: NAric Cyr <Aric.Cyr@amd.com>
Acked-by: NLeo Li <sunpeng.li@amd.com>
Acked-by: NTony Cheng <Tony.Cheng@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

@@ -1852,7 +1852,7 @@ void dcn10_get_hdr_visual_confirm_color(
 
 	switch (top_pipe_ctx->plane_res.scl_data.format) {
 	case PIXEL_FORMAT_ARGB2101010:
-		if (top_pipe_ctx->stream->out_transfer_func->tf == TRANSFER_FUNCTION_UNITY) {
+		if (top_pipe_ctx->stream->out_transfer_func->tf == TRANSFER_FUNCTION_PQ) {
 			/* HDR10, ARGB2101010 - set boarder color to red */
 			color->color_r_cr = color_value;
 		}