arm64: dts: qcom: ipq6018: add QUP5 I2C node

Add node to support this bus inside of IPQ6018.
For example, this bus is used to work with the
voltage regulator (mp5496) on the Yuncore AX840 wireless AP.
Signed-off-by: Isaev Ruslan <legale.legale@gmail.com>
Link: https://lore.kernel.org/r/CACDmYyfOe-jcgj4BAD8=pr08sHpOF=+FRcwrouuLAVsa4+zwtw@mail.gmail.comSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/ipq6018.dtsi

@@ -584,6 +584,21 @@ blsp1_i2c3: i2c@78b7000 {
 			status = "disabled";
 		};
 
+		blsp1_i2c6: i2c@78ba000 {
+			compatible = "qcom,i2c-qup-v2.2.1";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x0 0x078ba000 0x0 0x600>;
+			interrupts = <GIC_SPI 300 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&gcc GCC_BLSP1_QUP6_I2C_APPS_CLK>,
+			       <&gcc GCC_BLSP1_AHB_CLK>;
+			clock-names = "core", "iface";
+			clock-frequency = <400000>;
+			dmas = <&blsp_dma 22>, <&blsp_dma 23>;
+			dma-names = "tx", "rx";
+			status = "disabled";
+		};
+
 		qpic_bam: dma-controller@7984000 {
 			compatible = "qcom,bam-v1.7.0";
 			reg = <0x0 0x07984000 0x0 0x1a000>;