topic: Interface config file for FTDI UM232H module

Added interface config file for the FTDI FT232H based UM232H module.
This should work with UM232H-B too, an even cheaper module, but
that has not been tested.

Change-Id: Ifc312d6741da0b7862fe07d854023190d7afe251
Signed-off-by: Ragnar Sundblad <raggesu@gmail.com>
Reviewed-on: http://openocd.zylin.com/3031


Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>