Fixing return value of function 'start' in init script

During fixing lock mechanism (http://gerrit.ovirt.org/#/c/17662) we
change to use locked_start function, this set to return "start ||
release_lock && return 1". Without surrender the second part with brackets,
this function returns always 1. This 1 returns as exit code and fail external
operations as hostDeploy.

Change-Id: If9a9e89594f136d8e7b41b713e43d64f3702d454
Signed-off-by: Ohad Basan <obasan@redhat.com>
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/17828
Reviewed-by: Dan Kenigsberg <danken@redhat.com>