ARM: dts: rockchip: Add rv1109 SoC

The Rockchip rv1109 SoC is a dual core version of the rv1126. It is
otherwise identical and shares the same device tree config.

This patch introduces a dtsi file to drop the additional cpu nodes.
Taken from Rockchip BSP kernel.
Signed-off-by: Tim Lunn <tim@feathertop.org>
Link: https://lore.kernel.org/r/20231203124004.2676174-7-tim@feathertop.orgSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rockchip/rv1109.dtsi

+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd.
+ */
+
+/dts-v1/;
+
+#include "rv1126.dtsi"
+
+/ {
+	compatible = "rockchip,rv1109";
+
+	cpus {
+		/delete-node/ cpu@f02;
+		/delete-node/ cpu@f03;
+	};
+
+	arm-pmu {
+		interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&cpu0>, <&cpu1>;
+	};
+};