arm64: dts: verdin-imx8mp: improve pinctrl for vbus-supplies

As we are using two fixed regulators for Verdin USB_1_EN (SODIMM 155)
and Verdin USB_2_EN (SODIMM 185), those should be muxed as GPIOs rather
than OTG_PWR.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi

@@ -1221,7 +1221,7 @@ pinctrl_uart4: uart4grp {
 
 	pinctrl_usb1_vbus: usb1vbusgrp {
 		fsl,pins =
-			<MX8MP_IOMUXC_GPIO1_IO12__USB1_OTG_PWR		0x19>;	/* SODIMM 155 */
+			<MX8MP_IOMUXC_GPIO1_IO12__GPIO1_IO12		0x106>;	/* SODIMM 155 */
 	};
 
 	/* USB_1_ID */
@@ -1232,7 +1232,7 @@ pinctrl_usb_1_id: usb1idgrp {
 
 	pinctrl_usb2_vbus: usb2vbusgrp {
 		fsl,pins =
-			<MX8MP_IOMUXC_GPIO1_IO14__USB2_OTG_PWR		0x19>;	/* SODIMM 185 */
+			<MX8MP_IOMUXC_GPIO1_IO14__GPIO1_IO14		0x106>;	/* SODIMM 185 */
 	};
 
 	/* On-module Wi-Fi */