USB: pxa168: Add onchip USB host controller support

- Add EHCI Host controller driver
- Add wrapper that creates resources for host controller driver

v2 - Call clk_put() after clk_disable() in probe function

Signed-off-by: Tanmay Upadhyay <tanmay.upadhyay@einfochips.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 48f1781..7e7f42b 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -69,6 +69,7 @@
 	default y if ARCH_MSM
 	default y if MICROBLAZE
 	default y if SPARC_LEON
+	default y if ARCH_MMP
 	default PCI
 
 # ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.