FIB code coverity found defect
FIB code coverity found defect

Change-Id: I7cdc29dd6481242aaace75138cc34e2f5ea76b81
Signed-off-by: Neale Ranns <7d187a79c6b4bf1b7a865a4d130ff0038bf5d84b@cisco.com>

FDio/vpp,chrisy/vpp,vpp-dev/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,vpp-dev/vpp,vpp-dev/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,vpp-dev/vpp,chrisy/vpp,vpp-dev/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,vpp-dev/vpp,vpp-dev/vpp