uboot-imx

usb: ohci: Move the ohci_dev struct to inside the main ohci struct

This is a preparation patch for adding driver-model support.

Note we do keep ohci_dev as a separate struct so that we can later add
support for interrupt-queues which requires allocating a separate ohci_dev
per interrupt-queue.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Marek Vasut <marex@denx.de>