ARM: dts: tegra30: enable USB PHY node on some devices

Enable USB PHY nodes on ASUS Transformers, Grouper, Enadevoru
and LG X3. This is not mandatory since driver will use default
values but preferable for new devices.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
diff --git a/arch/arm/dts/tegra30-asus-p1801-t.dts b/arch/arm/dts/tegra30-asus-p1801-t.dts
index d62d432..19de984 100644
--- a/arch/arm/dts/tegra30-asus-p1801-t.dts
+++ b/arch/arm/dts/tegra30-asus-p1801-t.dts
@@ -150,17 +150,32 @@
 		dr_mode = "otg";
 	};
 
+	usb-phy@7d000000 {
+		status = "okay";
+		nvidia,hssync-start-delay = <0>;
+		nvidia,xcvr-lsfslew = <2>;
+		nvidia,xcvr-lsrslew = <2>;
+	};
+
 	/* Mini USB port */
 	usb2: usb@7d004000 {
 		status = "okay";
 		nvidia,vbus-gpio = <&gpio TEGRA_GPIO(H, 7) GPIO_ACTIVE_HIGH>;
 	};
 
+	usb-phy@7d004000 {
+		status = "okay";
+	};
+
 	/* Dock's USB port */
 	usb3: usb@7d008000 {
 		status = "okay";
 	};
 
+	usb-phy@7d008000 {
+		status = "okay";
+	};
+
 	/* PMIC has a built-in 32KHz oscillator which is used by PMC */
 	clk32k_in: clock-32k {
 		compatible = "fixed-clock";