Give correct argument to ip_call_add_del_adjacency_callbacks
Give correct argument to ip_call_add_del_adjacency_callbacks

ip_call_add_del_adjacency_callbacks requires an adjacency index, not a
sw_if_index.

Change-Id: I4ae6a6bbbe0abee4791217463d353c56f9735ba3
Signed-off-by: Pierre Pfister <e31bfcc197987a594da168a19bf32d37137e11a7@cisco.com>

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