arm64: mvebu: Armada 3700: Add COMPHY device tree nodes

This patch adds the COMPHY device tree nodes that are still missing to
the Armada 3700 dts files.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Wilson Ding <dingwei@marvell.com>
Cc: Victor Gu <xigu@marvell.com>
Cc: Hua Jing <jinghua@marvell.com>
Cc: Terry Zhou <bjzhou@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
diff --git a/arch/arm/dts/armada-37xx.dtsi b/arch/arm/dts/armada-37xx.dtsi
index 9f350df..ceeb6e5 100644
--- a/arch/arm/dts/armada-37xx.dtsi
+++ b/arch/arm/dts/armada-37xx.dtsi
@@ -45,6 +45,7 @@
  */
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/comphy/comphy_data.h>
 
 / {
 	model = "Marvell Armada 37xx SoC";
@@ -169,6 +170,14 @@
 				spi-max-frequency = <40000>;
 				status = "disabled";
 			};
+
+			comphy: comphy@18300 {
+				compatible = "marvell,mvebu-comphy", "marvell,comphy-armada-3700";
+				reg = <0x18300 0x28>,
+				      <0x1f300 0x3d000>;
+				mux-bitcount = <1>;
+				max-lanes = <2>;
+			};
 		};
 	};
 };