usb: core: Fix building with CONFIG_USB_OTG turned on.
defconfigs: enable USB OTG support

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I92a19e1d095dbfbc04bb011e195b8c3958537c8d
Merge pull request #2 from LegacyXperia/cm-10.2

Enable OTG + LX changes