As the priority of RTB panic notifier was zero, it was
not guaranteed to disable RTB right after kernel panic.
So RTB log buffer could be flooded with some I/O operations
after panic. By setting the priority of RTB panic notifier
to the highest value, make sure RTB is disabled right after
a kernel panic.
Change-Id: If9efc2ec31efa6aa17e92b2b01e81ab4df6d1730
Signed-off-by: Se Wang (Patrick) Oh <sewango@codeaurora.org>