Add configs for Atheros ar9331 MIPS based WiSoC and
board based on this chip: TP-LINK TL-MR3020
Change-Id: I9e99719bce4bbb28311f6e9cddb32288db6e7b91
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-on: http://openocd.zylin.com/2519
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>