msm: msm_watchdog_v2: Increase watchdog bark timeout during panic

We now wait for 10 seconds during panic handling before triggerring a
watchdog bark. This is done because the earlier timeout of 4 seconds
was not sufficient for all targets which resulted in the device resetting
in the middle of the panic handler.

Change-Id: I1a45ac2ccf626d93848763fe56bb6ad164c2471d
Signed-off-by: Ameya Thakur <ameyat@codeaurora.org>