ar71xx: added support for TL-WA830RE V2

Corrected patch ath79 insted of auth79. Sorry.

Signed-off-by: Fredrik Jonson <fredrik@famjonson.se>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41596 3c298f89-4303-0410-b956-a3cf2f4a3e73
lantiq: configure uboot-envtools on BTHOMEHUBV2B and make it work correctly on other lantiq boards

Generate the configuration file for uboot-envtools
on BTHOMEHUBV2B. Adds the specific parameters for the
BTHOMEHUBV2B and also fixes an incorrect path which
would have affected other lantiq boards as well
(currently only the GIGASX76X).

Signed-off-by: Ben Mulvihill <ben.mulvihill@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41597 3c298f89-4303-0410-b956-a3cf2f4a3e73