ARM: tegra: Enable XUSB controller in defconfig

Enable the XUSB pad controller and XUSB controller (implementing an XHCI
interface) in the Tegra default configuration.
Signed-off-by: NThierry Reding <treding@nvidia.com>

arch/arm/configs/tegra_defconfig

@@ -218,6 +218,7 @@ CONFIG_SND_SOC_TEGRA_ALC5632=y
 CONFIG_SND_SOC_TEGRA_MAX98090=y
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_TEGRA=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_TEGRA=y
 CONFIG_USB_ACM=y
@@ -266,6 +267,7 @@ CONFIG_IIO=y
 CONFIG_AK8975=y
 CONFIG_PWM=y
 CONFIG_PWM_TEGRA=y
+CONFIG_PHY_TEGRA_XUSB=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y