firmware: qcom: Add TZ log driver snapshot

This is a snapshot of TZ log driver as of msm-4.14
commit <c3715e1> (Merge "drm/msm/dp: change pinctrl
configuration to optional").

Change-Id: I1449f70ec8b8163daa65417daba1672d809c3226
Signed-off-by: Zhen Kong <zkong@codeaurora.org>