add IPSEC_FILTERGIF suport for FAST_IPSEC
add IPSEC_FILTERGIF suport for FAST_IPSEC

PR:		kern/51922
Submitted by:	Eric Masson <e-masson@kisoft-services.com>
MFC after:	1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase