usb: usb_bam: Update for 3.10 kernel API changes

Leftovers from 3.4 backports

 f6cd307 usb: phy: fix return value check of usb_get_phy
 490c10c usb: otg: support for multiple transceivers by a single controller
 422a8d5 usb: otg: utils: rename function name in OTG utils

Signed-off-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>