service: Always restart

The service may fail in case it gets exception on DBus, e.g. when BMC is
super busy and it gets "org.freedesktop.DBus.Error.Timeout" exception.

Make this service always restart so that it could always come back.

Signed-off-by: Lei YU <yulei.sh@bytedance.com>
Change-Id: Ib906d0a3c9cf5e79109099893454b2a78b4e495f
1 file changed