webos-image: luna-service2=164

:Release Notes:
Reboot the device is either of the hubs stops

:Detailed Notes:
If either ls-hub stops (i.e. crashes), allowing it to restart will leave
the system in a complete unstable state with all ls2 connections lost.

Thus, an upstart job is created to ensure that such an event results in
the device being rebooted.

Changes submissions/163..164
32c27c9 ls-hubd_watchdog to reboot system on ls-hub crash
9441baa ls-hubd*watchdogs are not working

:Testing Performed:
Killed each hub and ensured a reboot occurred

:QA Notes:

:Issues Addressed:
[GF-45875] ls-hubd_p*_watchdog not working
[GF-52449] CCC: luna-service2=164

Open-webOS-DCO-1.0-Signed-off-by: Keith Derrick <keith.derrick@lge.com>

Change-Id: I346386b0d6bb6433ef99cabe01ce446470b2e7b6
Reviewed-on: https://g2g.palm.com/4006
Reviewed-by: DCO Verification
Build: Keith Derrick <keith.derrick@lge.com>
Reviewed-by: Keith Derrick <keith.derrick@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Susan Montooth <susan.montooth@lge.com>
Tested-by: Susan Montooth <susan.montooth@lge.com>