imx: usb: ehci-mx6: add usb support for imx7d soc

Extend ehci-mx6 usb driver to support imx7d usb

Signed-off-by: Adrian Alonso <aalonso@freescale.com>
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 7f07d77..f70f38c 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -37,6 +37,7 @@
 obj-$(CONFIG_USB_EHCI_MXS) += ehci-mxs.o
 obj-$(CONFIG_USB_EHCI_MX5) += ehci-mx5.o
 obj-$(CONFIG_USB_EHCI_MX6) += ehci-mx6.o
+obj-$(CONFIG_USB_EHCI_MX7) += ehci-mx6.o
 obj-$(CONFIG_USB_EHCI_OMAP) += ehci-omap.o
 obj-$(CONFIG_USB_EHCI_PPC4XX) += ehci-ppc4xx.o
 obj-$(CONFIG_USB_EHCI_MARVELL) += ehci-marvell.o