ARM: Allow panic on division by zero in the kernel

Division by zero errors in the kernel currently trigger warnings.
Allow panic on these errors so that we can catch the problem closer
to its source.

Change-Id: Id5fed71b74cd37874ae857a8105455d7561c782d
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
[abhimany: resolve trivial merge conflicts]
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>