usb: ftdi_sio: fixup BeagleBone A5+ quirk

BeagleBone A5+ devices ended up getting shipped with the
'BeagleBone/XDS100V2' product string, and not XDS100 like it
was agreed, so adjust the quirk to match.

For details, see the thread on the beagle list:

https://groups.google.com/forum/#!msg/beagleboard/zrFPew9_Wvo/ibWr1-eE8JwJ

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>