arm64: dts: marvell: armada-37xx: Move PCIe comphy handle property

Move the comphy handle property of the PCIe node from board specific
device tree files (EspressoBin and Turris Mox) to the generic
armada-37xx.dtsi.

This is correct since this is the only possible PCIe PHY configuration
on Armada 37xx, so when PCIe is enabled on any board, this handle is
correct.
Signed-off-by: NMarek Behún <marek.behun@nic.cz>
Tested-by: NTomasz Maciej Nowak <tmn505@gmail.com>
Acked-by: NThomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: NGregory CLEMENT <gregory.clement@bootlin.com>

arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi

@@ -44,7 +44,6 @@
 /* J9 */
 &pcie0 {
 	status = "okay";
-	phys = <&comphy1 0>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie_reset_pins &pcie_clkreq_pins>;
 	reset-gpios = <&gpiosb 3 GPIO_ACTIVE_LOW>;

arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts

@@ -134,7 +134,6 @@
 	status = "okay";
 	max-link-speed = <2>;
 	reset-gpios = <&gpiosb 3 GPIO_ACTIVE_LOW>;
-	phys = <&comphy1 0>;
 
 	/* enabled by U-Boot if PCIe module is present */
 	status = "disabled";

arch/arm64/boot/dts/marvell/armada-37xx.dtsi

@@ -493,6 +493,7 @@
 					<0 0 0 2 &pcie_intc 1>,
 					<0 0 0 3 &pcie_intc 2>,
 					<0 0 0 4 &pcie_intc 3>;
+			phys = <&comphy1 0>;
 			pcie_intc: interrupt-controller {
 				interrupt-controller;
 				#interrupt-cells = <1>;