drm/amd/display: fix DalDramClockChangeLatencyNs override

[why]
pstate_latency_us never gets updated from the hard coded value
in rn_clk_mgr.c

[how]
update the wm table's values before we do calculations with them
Signed-off-by: Joseph Gravenor <joseph.gravenor@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c

@@ -1041,9 +1041,12 @@ static void patch_bounding_box(struct dc *dc, struct _vcs_dpi_soc_bounding_box_s
 	}
 
 	if (dc->bb_overrides.dram_clock_change_latency_ns) {
-		bb->dram_clock_change_latency_us =
+		for (i = 0; i < WM_SET_COUNT; i++) {
+			dc->clk_mgr->bw_params->wm_table.entries[i].pstate_latency_us =
 				dc->bb_overrides.dram_clock_change_latency_ns / 1000.0;
 		}
+	}
+
 	kernel_fpu_end();
 }