vl_api_address_t uses a packed enum for the address family, compare
a->af directly with ADDRESS_IP4 / ADDRESS_IP6 instead of running a->af
through clib_host_to_net_u32(...) before compare.
Indirectly fixes api_ip_route_add_del(...) w/ count > 1.
Type: fix
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: Ib7f562ec9e92ee63e52a338d318fcf1ce6221755