Move iscsi.conf.5 from sbin/iscontrol/ to usr.bin/iscsictl/, as the
former is obsolete.

MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation


git-svn-id: svn+ssh://svn.freebsd.org/base/head@275510 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f