Adding support for sysvinit to install reboot, poweroff, and pidof
commands available in /sbin.
Fixes bug #6620
Removed uninstall commands since they aren't used.
There is an error with sysvinit that will prevent the system from booting
if "dshm::sysinit:/bin/mkdir -p /dev/shm" is not present in the inittab.
Signed-off-by: Ryan Barnett <rjbarnet@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>