arm64: dts: imx8m: Replace deprecated fsl,usbphy DT props with phys

The fsl,usbphy DT property is deprecated, replace it with phys DT
property and specify #phy-cells. No functional change.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mm.dtsi

@@ -241,6 +241,7 @@ map0 {
 	};
 
 	usbphynop1: usbphynop1 {
+		#phy-cells = <0>;
 		compatible = "usb-nop-xceiv";
 		clocks = <&clk IMX8MM_CLK_USB_PHY_REF>;
 		assigned-clocks = <&clk IMX8MM_CLK_USB_PHY_REF>;
@@ -249,6 +250,7 @@ usbphynop1: usbphynop1 {
 	};
 
 	usbphynop2: usbphynop2 {
+		#phy-cells = <0>;
 		compatible = "usb-nop-xceiv";
 		clocks = <&clk IMX8MM_CLK_USB_PHY_REF>;
 		assigned-clocks = <&clk IMX8MM_CLK_USB_PHY_REF>;
@@ -968,7 +970,7 @@ usbotg1: usb@32e40000 {
 				clock-names = "usb1_ctrl_root_clk";
 				assigned-clocks = <&clk IMX8MM_CLK_USB_BUS>;
 				assigned-clock-parents = <&clk IMX8MM_SYS_PLL2_500M>;
-				fsl,usbphy = <&usbphynop1>;
+				phys = <&usbphynop1>;
 				fsl,usbmisc = <&usbmisc1 0>;
 				status = "disabled";
 			};
@@ -987,7 +989,7 @@ usbotg2: usb@32e50000 {
 				clock-names = "usb1_ctrl_root_clk";
 				assigned-clocks = <&clk IMX8MM_CLK_USB_BUS>;
 				assigned-clock-parents = <&clk IMX8MM_SYS_PLL2_500M>;
-				fsl,usbphy = <&usbphynop2>;
+				phys = <&usbphynop2>;
 				fsl,usbmisc = <&usbmisc2 0>;
 				status = "disabled";
 			};

arch/arm64/boot/dts/freescale/imx8mn.dtsi

@@ -971,7 +971,7 @@ usbotg1: usb@32e40000 {
 				clock-names = "usb1_ctrl_root_clk";
 				assigned-clocks = <&clk IMX8MN_CLK_USB_BUS>;
 				assigned-clock-parents = <&clk IMX8MN_SYS_PLL2_500M>;
-				fsl,usbphy = <&usbphynop1>;
+				phys = <&usbphynop1>;
 				fsl,usbmisc = <&usbmisc1 0>;
 				status = "disabled";
 			};
@@ -1039,6 +1039,7 @@ ddr-pmu@3d800000 {
 	};
 
 	usbphynop1: usbphynop1 {
+		#phy-cells = <0>;
 		compatible = "usb-nop-xceiv";
 		clocks = <&clk IMX8MN_CLK_USB_PHY_REF>;
 		assigned-clocks = <&clk IMX8MN_CLK_USB_PHY_REF>;