filecache: add Upstart 1.8 job file

[GF-5620]  update coreOS upstart scripts for 1.8

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

Change-Id: I6e512e3c5e1f2a1ab5de8c946f231ec6e13235cc
Reviewed-on: https://g2g.palm.com/2713
Reviewed-by: Build Verification
Tested-by: Ed Chejlava <ed.chejlava@lge.com>
Reviewed-by: Ed Chejlava <ed.chejlava@lge.com>