Collection of small net2280 driver fixes:

    - Byteswap bug for big-endian PIO paths
	From:  Jon Neal <jon@ballardtech.com>
    - Highspeed electrical conformance fix
	From:  Alex Sanks <alex@netchip.com>
    - Support new usb_gadget_{connect,disconnect}() API calls so
      that gadget drivers have softconnect control over the D+ pullup
	From:  Alex Sanks <alex@netchip.com>

And minor cleanups by me.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>