ARM: dts: r8a7794: add EtherAVB clock

Add the EtherAVB clock to the R8A7794 device tree.

Based on the commit eaa870b3 ("ARM: shmobile: r8a7791: add EtherAVB
clock").
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7794.dtsi

@@ -1112,13 +1112,14 @@ R8A7794_CLK_SCIF0 R8A7794_CLK_DU0
 		mstp8_clks: mstp8_clks@e6150990 {
 			compatible = "renesas,r8a7794-mstp-clocks", "renesas,cpg-mstp-clocks";
 			reg = <0 0xe6150990 0 4>, <0 0xe61509a0 0 4>;
-			clocks = <&zg_clk>, <&zg_clk>, <&p_clk>;
+			clocks = <&zg_clk>, <&zg_clk>, <&hp_clk>, <&p_clk>;
 			#clock-cells = <1>;
 			clock-indices = <
-				R8A7794_CLK_VIN1 R8A7794_CLK_VIN0 R8A7794_CLK_ETHER
+				R8A7794_CLK_VIN1 R8A7794_CLK_VIN0
+				R8A7794_CLK_ETHERAVB R8A7794_CLK_ETHER
 			>;
 			clock-output-names =
-				"vin1", "vin0", "ether";
+				"vin1", "vin0", "etheravb", "ether";
 		};
 		mstp9_clks: mstp9_clks@e6150994 {
 			compatible = "renesas,r8a7794-mstp-clocks", "renesas,cpg-mstp-clocks";

include/dt-bindings/clock/r8a7794-clock.h

@@ -84,6 +84,7 @@
 /* MSTP8 */
 #define R8A7794_CLK_VIN1		10
 #define R8A7794_CLK_VIN0		11
+#define R8A7794_CLK_ETHERAVB		12
 #define R8A7794_CLK_ETHER		13
 
 /* MSTP9 */