ARM64: dts: marvell: armada-cp110: Add registers clock for I2C nodes

This extra clock is needed to access the registers of the I2C controller
used on the Armada 7K/8K SoCs.

This follows the changes already made in the binding documentation (as
well as in the driver) in:
commit 1534156e ("i2c: mv64xxx: Fix clock
resource by adding an optional bus clock")
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm64/boot/dts/marvell/armada-cp110.dtsi

@@ -280,7 +280,9 @@ CP110_LABEL(i2c0): i2c@701000 {
 			#address-cells = <1>;
 			#size-cells = <0>;
 			interrupts = <ICU_GRP_NSR 120 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&CP110_LABEL(clk) 1 21>;
+			clock-names = "core", "reg";
+			clocks = <&CP110_LABEL(clk) 1 21>,
+				 <&CP110_LABEL(clk) 1 17>;
 			status = "disabled";
 		};
 
@@ -290,7 +292,9 @@ CP110_LABEL(i2c1): i2c@701100 {
 			#address-cells = <1>;
 			#size-cells = <0>;
 			interrupts = <ICU_GRP_NSR 121 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&CP110_LABEL(clk) 1 21>;
+			clock-names = "core", "reg";
+			clocks = <&CP110_LABEL(clk) 1 21>,
+				 <&CP110_LABEL(clk) 1 17>;
 			status = "disabled";
 		};