arch: arm: dts: k3-j7200-r5-evm: Enable AVS feature

During DT sync with kernel 6.6, AVS feature was removed by mistake.
So adding back AVS feature.

Fixes: df73e791ce09("arm: dts: j7200: dts sync with Linux 6.6-rc1")

Signed-off-by: Udit Kumar <u-kumar1@ti.com>
Reviewed-by: Aniket Limaye <a-limaye@ti.com>

arch/arm/dts/k3-j7200-r5-common-proc-board.dts

@@ -102,3 +102,8 @@
 &mcu_udmap {
     ti,sci = <&dm_tifs>;
 };
+
+&wkup_vtm0 {
+	vdd-supply-2 = <&buckb1>;
+	bootph-pre-ram;
+};