[U-Boot] EHCI-OMAP driver and DM compatibility

I know there are a bunch of boards with omap EHCI host support and with the pending DM_USB requirement, I was curious to see if anyone has started this. I've got two boards that are impacted by this, and I was going to look at migrating the driver, but I don't want to duplicate efforts if some have been started. If somone has started, I'd love to either help and/or test the driver.

adam