usb: host: Allow to build ehci orion with mvebu SoCs

The mvebu ARM64 SoCs no longer select PLAT_ORION. However Armada 37xx use
the Orion EHCI controller. This patch allows the Orion EHCI driver to be
built when ARCH_MVEBU is selected.
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/Kconfig

@@ -188,7 +188,7 @@ config USB_EHCI_HCD_OMAP
 
 config USB_EHCI_HCD_ORION
 	tristate  "Support for Marvell EBU on-chip EHCI USB controller"
-	depends on USB_EHCI_HCD && PLAT_ORION
+	depends on USB_EHCI_HCD && (PLAT_ORION || ARCH_MVEBU)
 	default y
 	---help---
 	  Enables support for the on-chip EHCI controller on Marvell's