api: enable Java API generation for l2.api (VPP-438)
api: enable Java API generation for l2.api (VPP-438)

Change-Id: I867c2f90d812007b874502d2aa60f09e40650941
Signed-off-by: Marek Gradzki <3ca09cd7b7147613247c2a96dcdb0ba33114f8e7@cisco.com>

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