drm/amd/display: skip crtc power down when ips switch

[Why & How]
Add a dc debug option to keep crtc on when ips switch.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Fudong Wang <Fudong.Wang@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@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.h

@@ -979,6 +979,7 @@ struct dc_debug_options {
 	bool disable_z10;
 	bool enable_z9_disable_interface;
 	bool psr_skip_crtc_disable;
+	uint32_t ips_skip_crtc_disable_mask;
 	union dpia_debug_options dpia_debug;
 	bool disable_fixed_vs_aux_timeout_wa;
 	uint32_t fixed_vs_aux_delay_config_wa;