filecache: update upstart script for Upstart 1.8

[GF-5620] update coreOS component upstart scripts for Upstart 1.8

Open-webOS-DCO-1.0-Signed-off-by: Ed Chejlava <ed.chejlava@lge.com>

Change-Id: Idd242e3d18c20ac45273ce39d7961c28b9489753