bpf device creation as part of MAKEDEV ramdisk

[Paul Fleischer <xpg%netbsd.org@localhost>]

Hi,

I have noticed that evbarm install kernels do not have the /dev/bpf
devices, meaning that DHCP configuration is not possible.
The patch below adds bpf-devices to the ramdisk target of evbarm's MAKEDEV.
This follows the behaviour of MAKEDEV ramdisk in other ports (cats,
dreamhost, evbsh3, mac68k, sandpoint, shark, and vax).

Ok to commit?

Cheers,
Paul

Index: etc/etc.evbarm/MAKEDEV.conf
===================================================================
RCS file: /cvsroot/src/etc/etc.evbarm/MAKEDEV.conf,v
retrieving revision 1.5
diff -u -p -r1.5 MAKEDEV.conf
--- etc/etc.evbarm/MAKEDEV.conf 20 Mar 2011 03:00:56 -0000      1.5
+++ etc/etc.evbarm/MAKEDEV.conf 13 Aug 2012 19:05:42 -0000
@@ -21,4 +21,5 @@ ramdisk|floppy)
        makedev flash0 flash1 flash2 flash3 flash4 flash5 flash6 flash7
        makedev tty0 tty1 opty
        makedev st0 st1 cd0 cd1
+       makedev bpf
        ;;