ARM: rmobile: Add Renesas RPC HF/QSPI DT nodes

Add device tree nodes for the Renesas RPC HF/QSPI controller.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/arm/dts/r8a7796.dtsi b/arch/arm/dts/r8a7796.dtsi
index 83faabe..7cb14bb 100644
--- a/arch/arm/dts/r8a7796.dtsi
+++ b/arch/arm/dts/r8a7796.dtsi
@@ -1350,6 +1350,14 @@
 			status = "disabled";
 		};
 
+		rpc: rpc@0xee200000 {
+			compatible = "renesas,rpc-r8a7796", "renesas,rpc";
+			reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0>;
+			clocks = <&cpg CPG_MOD 917>;
+			bank-width = <2>;
+			status = "disabled";
+		};
+
 		sdhi0: sd@ee100000 {
 			compatible = "renesas,sdhi-r8a7796";
 			reg = <0 0xee100000 0 0x2000>;