Merge branch 'master' of git://git.denx.de/u-boot-usb

* 'master' of git://git.denx.de/u-boot-usb:
  USB: Use (get|put)_unaligned for accessing wMaxPacketSize
  usb:gadget:s5p Enable the USB Gadget framework at Exynos4210 (C210 Universal)
  README: add documentation for CONFIG_USB_ULPI*
  USB: ULPI: increase error case verbosity
  USB: ULPI: clean a mixup of return types
  USB: ULPI: switch argument type from u8 to unsigned