soc: qcom: Add a snapshot of Remote QDSS driver

This is the snapshot of the remote-qdss driver as of kernel msm-4.9
commit 'd57f0e2fc12c053d5b4d88d05100e8e9bab101b3' (soc: qcom: Add debugfs
interface for enabling SOC debug events).

Change-Id: Ie746704809ce868b8075676a8e92c3fc62cf21af
Signed-off-by: Rama Aparna Mallavarapu <aparnam@codeaurora.org>