kernel/netgraph7: Remove <sys/ktr.h>. There's no DragonFly KTR here.
kernel/netgraph7: Add a missing header to the Makefile.
kernel/netgraph7: Fix cluster_limit argument to objcache_create_mbacked().
kernel/netgraph7: Use kether_ntoa().
kernel/wlan_acl: Put two more ethstr[] under IEEE80211_DEBUG.