drm/amd/display: fix minor coding errors where dml21 phase 5 uses wrong variables

There is a coding error which causes incorrect variables to be assigned
in DML21 phase 5.

Reviewed-by: Dillon Varone <[e-mail]>
Acked-by: Hamza Mahfooz <[e-mail]>
Signed-off-by: Wenjing Liu <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_top/dml_top.c

···
 	/*
 	* Phase 5: Optimize for Stutter
 	*/
-	memset(&l->vmin_phase, 0, sizeof(struct optimization_phase_params));
+	memset(&l->stutter_phase, 0, sizeof(struct optimization_phase_params));
 	l->stutter_phase.dml = dml;
 	l->stutter_phase.display_config = &l->base_display_config_with_meta;
 	l->stutter_phase.init_function = dml2_top_optimization_init_function_stutter;
···
 
 	if (stutter_success) {
 		memcpy(&l->base_display_config_with_meta, &l->optimized_display_config_with_meta, sizeof(struct display_configuation_with_meta));
-		l->base_display_config_with_meta.stage4.success = true;
+		l->base_display_config_with_meta.stage5.success = true;
 	}
 
 	/*