usb: chipidea: usbmisc: Add USB support for i.MX25/i.MX35 CPUs

This adds the i.MX25 and the i.MX35 support in the
ChipIdea usbmisc driver.

The i.MX25 and i.MX35 usb controllers are similar enough to be
able to use the same code.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Denis Carikli <denis@eukrea.com>