drivers: soc: qcom: Add snapshot of cpuss dump driver

Snapshot of cpuss dump driver taken from msm-4.14 commit <55e5efd5>
(Merge "nl80211: Fix external_auth check for offloaded authentication")

Change-Id: Ie291738fe217beb1def5defa0f246c3b1697cba4
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>