soc: qcom: Add snapshot of minidump driver

This is a snapshot of minidump driver as of msm-4.14 commit
<d53d3a92c7a8065>. (Merge "cnss2: Add module parameter to
support different BDF types").

Change-Id: If6b899276538fe80d75855453263ffa21f30180f
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>