arm64: dts: rockchip: rock5b: add cpu mem regulator info

Add the second supply regulator for the CPU cores, which is used
for supplying the memory interface.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts

@@ -129,34 +129,42 @@ &combphy2_psu {
 
 &cpu_b0 {
 	cpu-supply = <&vdd_cpu_big0_s0>;
+	mem-supply = <&vdd_cpu_big0_s0>;
 };
 
 &cpu_b1 {
 	cpu-supply = <&vdd_cpu_big0_s0>;
+	mem-supply = <&vdd_cpu_big0_s0>;
 };
 
 &cpu_b2 {
 	cpu-supply = <&vdd_cpu_big1_s0>;
+	mem-supply = <&vdd_cpu_big1_s0>;
 };
 
 &cpu_b3 {
 	cpu-supply = <&vdd_cpu_big1_s0>;
+	mem-supply = <&vdd_cpu_big1_s0>;
 };
 
 &cpu_l0 {
 	cpu-supply = <&vdd_cpu_lit_s0>;
+	mem-supply = <&vdd_cpu_lit_mem_s0>;
 };
 
 &cpu_l1 {
 	cpu-supply = <&vdd_cpu_lit_s0>;
+	mem-supply = <&vdd_cpu_lit_mem_s0>;
 };
 
 &cpu_l2 {
 	cpu-supply = <&vdd_cpu_lit_s0>;
+	mem-supply = <&vdd_cpu_lit_mem_s0>;
 };
 
 &cpu_l3 {
 	cpu-supply = <&vdd_cpu_lit_s0>;
+	mem-supply = <&vdd_cpu_lit_mem_s0>;
 };
 
 &i2c0 {