ARM: tegra: colibri_t20: remove phy-reset-gpio from controller node

Remove the phy-reset-gpio from the USB controller node as it is already
specified in the PHY node.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra20-colibri.dtsi

@@ -457,8 +457,6 @@ emc-table@333000 {
 	/* EHCI instance 1: ULPI PHY -> AX88772B (On-module) */
 	usb@c5004000 {
 		status = "okay";
-		nvidia,phy-reset-gpio = <&gpio TEGRA_GPIO(V, 1)
-			GPIO_ACTIVE_LOW>;
 		#address-cells = <1>;
 		#size-cells = <0>;