Kconfig: tegra: Migrate USB_EHCI_TEGRA

Migrate USB_EHCI_TEGRA from headers to Kconfig

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Cc: Tom Warren <twarren@nvidia.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Cc: Peter.Chubb@data61.csiro.au
Cc: Lucas Stach <dev@lynxeye.de>
Cc: Stefan Agner <stefan.agner@toradex.com>
Cc: Alban Bedel <alban.bedel@avionic-design.de>
Cc: Allen Martin <amartin@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 60f37f4..ba1e6bf 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -179,6 +179,12 @@
 	help
 	  Enables support for the PCI-based EHCI controller.
 
+config USB_EHCI_TEGRA
+	bool "Support for NVIDIA Tegra on-chip EHCI USB controller"
+	depends on TEGRA
+	---help---
+	  Enable support for Tegra on-chip EHCI USB controller
+
 config USB_EHCI_ZYNQ
 	bool "Support for Xilinx Zynq on-chip EHCI USB controller"
 	depends on ARCH_ZYNQ