batman-adv: upgrade package to latest release 2017.0

batman-adv: upgrade package to latest release 2017.0

 * support latest kernels (3.2 - 4.11)
 * remove bridge loop avoidance addresses from translation table
 * allow to build B.A.T.M.A.N. V without cfg80211 integration on Linux <
 * 3.16
 * coding style cleanups and refactoring
 * bugs squashed:
   - fix interface reference counter on fragmentation errors
   - avoid double free on fragment merge error
   - fix support for up to 16 fragments
   - fix build of multicast compatibility code on some architectures

Signed-off-by: Sven Eckelmann <sven@narfation.org>