Fix warning in vppapigen
Fix warning in vppapigen

Change-Id: I6301ece0d772fd5a6271edd07765b05ef0b63f21
Signed-off-by: Damjan Marion <9141bba8b2efed526e55cf796d48631af330ad98@cisco.com>

chrisy/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,vpp-dev/vpp,vpp-dev/vpp,FDio/vpp,GabrielGanne/vpp-flowtable,GabrielGanne/vpp-flowtable,muharif/vpp,chrisy/vpp,vpp-dev/vpp,chrisy/vpp,milanlenco/vpp,vpp-dev/vpp,muharif/vpp,FDio/vpp,GabrielGanne/vpp-flowtable,milanlenco/vpp,muharif/vpp,muharif/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,GabrielGanne/vpp-flowtable,milanlenco/vpp,milanlenco/vpp,chrisy/vpp,vpp-dev/vpp,vpp-dev/vpp,vpp-dev/vpp,muharif/vpp,FDio/vpp,GabrielGanne/vpp-flowtable,FDio/vpp,milanlenco/vpp,milanlenco/vpp,GabrielGanne/vpp-flowtable,muharif/vpp