commit 975dc33b upstream.

The Kontron M2M development board, also known as the Fish River Island II,
has an optional daughter card providing access to the PCH_UART (EG20T) via
a ti_usb_3410_5052 uart to usb chip.

http://us.kontron.com/products/systems+and+platforms/m2m/m2m+smart+services+developer+kit.htmlSigned-off-by: Darren Hart <dvhart@linux.intel.com>
CC: Al Borchers <alborchers@steinerpoint.com>
CC: Peter Berger <pberger@brimson.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>