Revert "drm/amdgpu/display: change pipe policy for DCN 2.0"

This reverts commit bcfab8e.

Hopefully this is fixed by the previous patch to enable
TEMP_DEPENDENT_VMIN for navi1x or otherwise and we can re-enable
MPC_SPLIT_DYNAMIC for DCN 2.0 for better power savings.

Reviewed-by: Rodrigo Siqueira <[email protected]>
Acked-by: Qingqing Zhuo <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>

Author: alexdeucher

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c

@@ -712,7 +712,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 		.timing_trace = false,
 		.clock_trace = true,
 		.disable_pplib_clock_request = true,
-		.pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
+		.pipe_split_policy = MPC_SPLIT_DYNAMIC,
 		.force_single_disp_pipe_split = false,
 		.disable_dcc = DCC_ENABLE,
 		.vsr_support = true,