revert changes to sysvinit and sysvinit-inittab

Revert parts of commit c4d582cf242644f2acd316b7aac4f8571c060ee6
"stub sysvinit startup".

These changes prevented the /etc/rc[S012345].d/ init scripts from
running at boot time and when the run level changes.

Signed-off-by: Hong H. Pham <hong.pham@windriver.com>
allow root login through telnet in /etc/securetty

Append pts/[0..9] to /etc/securetty to allow root login through telnet.

Signed-off-by: Hong H. Pham <hong.pham@windriver.com>
Add inetutils-config package

Add a site specific inetutils-config package.  This package brings in
xinetd, which is needed to start the telnet server.

Signed-off-by: Hong H. Pham <hong.pham@windriver.com>