Supervdsm didn't create pid file when starting up

This cause errors over sysV when trying to perform service operations

Change-Id: I649179ca1c614dfcff91da9fada785c57303f57c
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/15196
Reviewed-by: Dan Kenigsberg <danken@redhat.com>