Merge tag 'fixes-for-v3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...

Felipe writes:

usb: fixes for v3.18-rc4

A single fix this for dwc2 this time. Because of
excessive debugging messages, dwc2 would sometimes
fail enumeration. The fix is simple, just converting
a dev_info() into dev_dbg().

Signed-off-by: Felipe Balbi <balbi@ti.com>