drm/amd/display: Add HDMI member to DTO

[Why]
For Pixel Rate control, when on HDMI, HDMI DTO
should be selected instead of DP DTO.

[How]
Add HDMI member to dtbclk_dto_params, so it can be used tell apart HDMI
and DP DTO in the future.
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Chris Park <chris.park@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h

@@ -80,6 +80,7 @@ struct dtbclk_dto_params {
 	int req_audio_dtbclk_khz;
 	int num_odm_segments;
 	int ref_dtbclk_khz;
+	bool is_hdmi;
 };
 
 struct dccg_funcs {