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

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

* 'master' of git://git.denx.de/u-boot-usb:
  USB: S5P: Add ehci support
  usb:udc:samsung Add functions for storing private gadget data in UDC driver
  usb:gadget:composite: Support for composite at gadget.h
  usb:gadget:composite USB composite gadget support
  usb:udc:samsung:cleanup Replace DEBUG_* macros with debug_cond() calls
  usb:udc: Remove duplicated USB definitions from include/linux/usb/ch9.h file
  USB: Document the QH and qTD antics in EHCI-HCD
  USB: Drop cache flush bloat in EHCI-HCD
  USB: Drop ehci_alloc/ehci_free in ehci-hcd
  USB: Align buffers at cacheline
  usb: use noinline define