scsi: ufs: Crash the system on unrecoverable state

If we hit fatal errors and are not able to recover using
reset, crash the system instead of proceeding and causing
further system failures.

Change-Id: I7fa3ea9d862f55330eea290a192028c11d5ddbde
Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org>