ar71xx: add profile for the WR842N/ND v2

Patch to add the profile for the TP-LINK WR842N/ND v2
Small update, because of a change in the Makefile.

Signed-off-by: Martijn Zilverschoon <thefriedzombie@gmail.com>
Patchwork: http://patchwork.openwrt.org/patch/4382/


Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 38815