netifd: Upstep to git HEAD version

64a655d proto: allow configuring deprecated static IPv6 addresses
c99182e remove obsolete /opt/local prefix on Mac OS X
0249d5f system-linux: Don't set gre tunnel ttl by default to 64 (#FS312)
edc15ca ubus: Display the IPv6 prefix assigned address

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>