ipset: update to 6.0

mconfig

@@ -1,30 +1,3 @@
 # -*- Makefile -*-
 #
-build_ACCOUNT=m
-build_CHAOS=m
-build_CHECKSUM=
-build_DELUDE=m
-build_DHCPMAC=m
-build_DNETMAP=
-build_ECHO=
-build_IPMARK=m
-build_LOGMARK=m
-build_RAWNAT=m
-build_STEAL=m
-build_SYSRQ=m
-build_TARPIT=m
-build_TEE=
-build_condition=m
-build_fuzzy=m
-build_geoip=m
-build_gradm=m
-build_iface=m
-build_ipp2p=m
-build_ipset4=m
-build_ipset6=
-build_ipv4options=m
-build_length2=m
-build_lscan=m
-build_pknock=m
-build_psd=m
-build_quota2=m
+build_ipset6=m