net: ipv6: Print info about unknown RA options

Print information about every unknown RA option we receive.
These options need to be implemented later.

Change-Id: Ic2d189e4a130162569a81ca58d38b8129183b2fd
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2 files changed