linux-cp: lcp fib fixes
linux-cp: lcp fib fixes

 Some possible side effects for multicast routes appears to be in
lcp_router_table_add_or_lock. so ff00/8 route will be processed
for ospf purposes the right way
 Ignore IPv6 kernel routes
 Skip adding auto routes into FIB

Type: fix

Signed-off-by: Vladimir Ratnikov <0b4540b213bf6184fb7926787f1863fd00af24ce@netgate.com>
Change-Id: I35f73d629a7fffca7f7d4547adc2549b72c2048f

chrisy/vpp,FDio/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp