ARM: dts: imx6dl: prtmvt: fix different USB related warnings

Fix USB-related warnings in imx6dl prtmvt device tree by disabling
unused usbphynop1 and usbphynop2 USB PHYs and over-current detection
which is not supported on USB h1 port. This fixes the following warnings
with the current kernel:
usb_phy_generic usbphynop1: dummy supplies not allowed for exclusive requests
usb_phy_generic usbphynop2: dummy supplies not allowed for exclusive requests
imx_usb 2184200.usb: No over current polarity defined

By the way, fix over-current detection on usbotg port.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6dl-prtmvt.dts

@@ -560,6 +560,7 @@ &usbh1 {
 	pinctrl-names = "default";
 	phy_type = "utmi";
 	dr_mode = "host";
+	disable-over-current;
 	status = "okay";
 };
 
@@ -569,10 +570,18 @@ &usbotg {
 	pinctrl-0 = <&pinctrl_usbotg>;
 	phy_type = "utmi";
 	dr_mode = "host";
-	disable-over-current;
+	over-current-active-low;
 	status = "okay";
 };
 
+&usbphynop1 {
+	status = "disabled";
+};
+
+&usbphynop2 {
+	status = "disabled";
+};
+
 &usdhc1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc1>;