arm: tegra: fix Kconfig select clauses

USB_ULPI and USB_ULPI_VIEWPORT shouldn't really
be selected directly by anyone, but since Tegra
still needs some time before turning ulpi viewport
into a proper PHY driver, we need to keep the
selects in place.

This patch just fixes the conditional select
so that it will continue to build after merging
the latest PHY layer changes.

Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index ba1347c..1b58587 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -179,6 +179,7 @@
        boolean "NVIDIA Tegra HCD support"
        depends on USB_EHCI_HCD && ARCH_TEGRA
        select USB_EHCI_ROOT_HUB_TT
+       select USB_PHY
        help
          This driver enables support for the internal USB Host Controllers
          found in NVIDIA Tegra SoCs. The controllers are EHCI compliant.