ARM: mmp: add usb device support for PXA910

Add usb device support for Marvell PXA910.
Actually PXA920 will use the same device.

Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
6 files changed