drm/amd/display: Pass vrr mode to dcn

[WHY]
New features will require knowing the vrr mode for their enablement.

[HOW]
Pass the state via a member of dc_stream.
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Felipe Clark <Felipe.Clark@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/dc_stream.h

@@ -208,6 +208,7 @@ struct dc_stream_state {
 	bool ignore_msa_timing_param;
 
 	bool allow_freesync;
+	bool vrr_active_variable;
 	bool freesync_on_desktop;
 
 	bool converter_disable_audio;