uboot-phytec

usb: ohci: ohci-da8xx: Enable da850-ohci driver with DM support

This patch reuses some former code for the hawkboard, combines it
with some some similar DM_USB compatible code for the OHCI driver,
and enables the use of the da850's OHCI controller with DM_USB
compatibility.

Signed-off-by: Adam Ford <aford173@gmail.com>