Add support for Inverse Path USB armory board, an open source
flash-drive sized computer based on Freescale i.MX53 SoC.

http://inversepath.com/usbarmory

Signed-off-by: Andrej Rosano
Cc: Stefano Babic
Cc: Chris Kuethe
Cc: Fabio Estevam
Cc: Vagrant Cascadian
Tested-By: Vagrant Cascadian
Tested-by: Chris Kuethe