Revert "soc: qcom: pil: Log the TZ NMI caused subsystem err fatal"

This reverts commit 94619d9e.
Reverting because on secure devices there is permission issues causing
external abort while trying to read the register.

Change-Id: I382bdd37f042e8634c682de5e2c064aef9473ec6
Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>