Merge branch 'gadget' into for-next

Merge branch 'gadget' into for-next

* gadget:
  usb: gadget: m66592-udc: add pullup function
  usb: gadget: m66592-udc: add function for external controller
  usb: gadget: r8a66597-udc: add pullup function
  usb: gadget: zero: add superspeed support
  usb: gadget: add SS descriptors to Ethernet gadget
  usb: gadget: r8a66597-udc: add support for TEST_MODE
  usb: gadget: m66592-udc: add support for TEST_MODE
  usb: gadget: r8a66597-udc: Make BUSWAIT configurable through platform data
  usb: gadget: r8a66597-udc: fix cannot connect after rmmod gadget driver
  usb: update email address in r8a66597-udc and m66592-udc
  usb: musb: restore INDEX register in resume path
  usb: gadget: fix up depencies
  usb: gadget: fusb300_udc: fix compile warnings
  usb: gadget: ci13xx_udc.c: fix compile warning
  usb: gadget: net2272: fix compile warnings
  usb: gadget: langwell_udc: fix compile warnings
  usb: gadget: fusb300_udc: drop dead code