drm/amd/display: disable IPS

Disable IPS by default till it is ready.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Duncan Ma <duncan.ma@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Muhammad Ahmed <ahmed.ahmed@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn35/dcn35_resource.c

@@ -749,6 +749,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 	.disable_mem_low_power = true,
 	.ignore_pg = true,
 	.psp_disabled_wa = true,
+	.disable_ips = true,
 };
 
 static const struct dc_panel_config panel_config_defaults = {