kernel/netgraph7: Remove unneeded CFLAGS.
kernel/netgraph: Don't grab the tty_token around ldisc_{,de}register().

The functions already grab it themselves.

Pointed-out-by: nant
kernel/netgraph7: Use kprintf etc. directly instead of defining printf.

While here, remove some commented out code from dragonfly.h

In-discussion-with: nant
<sys/protosw.h>: Use netmsg_t.
Update the pciconf(8) database.

July 14, 2014 snapshot from http://pciids.sourceforge.net/