Provide a character device allowing us to access BERI memory regions.

Sponsored by:	DARPA, AFRL


git-svn-id: svn+ssh://svn.freebsd.org/base/head@273469 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Fix ctl.conf example to use proper paths to ZVOLs.

Sponsored by:	The FreeBSD Foundation


git-svn-id: svn+ssh://svn.freebsd.org/base/head@273470 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f