avf: correctly set VL_API_AVF_DELETE is_mp_safe
avf: correctly set VL_API_AVF_DELETE is_mp_safe

Need to add msg_id_base with VL_API_AVF_DELETE to properly set the
correct is_mp_safe variable.

Type: fix

Signed-off-by: Steven Luong <a748ea44ad7b179c2313a856d44e1e4eb39869bb@cisco.com>
Change-Id: I20f6e9441727fb7ffc132965b93c0a90482e1a52

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