ARM: dts: renesas: Remove leading 0x from rpc node

Remove the leading "0x" from rpc node to fix the below dtc warning:

Warning (simple_bus_reg): Node /soc/rpc@0xee200000 simple-bus unit
address format error, expected "ee200000"

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
diff --git a/arch/arm/dts/r8a77990-u-boot.dtsi b/arch/arm/dts/r8a77990-u-boot.dtsi
index ddf8b62..6655abe 100644
--- a/arch/arm/dts/r8a77990-u-boot.dtsi
+++ b/arch/arm/dts/r8a77990-u-boot.dtsi
@@ -9,7 +9,7 @@
 
 / {
 	soc {
-		rpc: rpc@0xee200000 {
+		rpc: rpc@ee200000 {
 			compatible = "renesas,rpc-r8a77990", "renesas,rpc";
 			reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0>;
 			clocks = <&cpg CPG_MOD 917>;