soc: qcom: core_hang: Add snapshot of core hang driver

This is a snapshot of the core hang driver as of msm-4.14 commit
<02ff79e55ddc0aa>.(Merge "perf: don't zombie certain events in
perf_event_release_kernel").

Change-Id: Id5627736553d1ea11a5a8d76f4ce27d6ef3af118
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Signed-off-by: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org>