fib: Refetech the adj after the walk in case the pool realloc'd
fib: Refetech the adj after the walk in case the pool realloc'd

Type: fix

Signed-off-by: Neale Ranns <c8ca090d26e35fc94cb9c8fe2fb2efcfa843d561@graphiant.com>
Change-Id: I8734c72cf15533d6614fbeb53b95c824dbd251a9

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