drm/amd/display: set optimized required for comp buf changes

[Description]
When compressed buffer allocation changes, optimized required flag should be
set to trigger an update in optimize bandwidth.
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@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/dcn20/dcn20_hwseq.c

@@ -2011,10 +2011,13 @@ void dcn20_prepare_bandwidth(
 
 	/* decrease compbuf size */
 	if (hubbub->funcs->program_compbuf_size) {
-		if (context->bw_ctx.dml.ip.min_comp_buffer_size_kbytes)
+		if (context->bw_ctx.dml.ip.min_comp_buffer_size_kbytes) {
 			compbuf_size_kb = context->bw_ctx.dml.ip.min_comp_buffer_size_kbytes;
-		else
+			dc->wm_optimized_required |= (compbuf_size_kb != dc->current_state->bw_ctx.dml.ip.min_comp_buffer_size_kbytes);
+		} else {
 			compbuf_size_kb = context->bw_ctx.bw.dcn.compbuf_size_kb;
+			dc->wm_optimized_required |= (compbuf_size_kb != dc->current_state->bw_ctx.bw.dcn.compbuf_size_kb);
+		}
 
 		hubbub->funcs->program_compbuf_size(hubbub, compbuf_size_kb, false);
 	}