coresight: dbgui: Add snapshot of coresight debugUI driver

This is snapshot of the coresight-dbgUI driver as of msm-4.9
'commit 4350ecbefe8f1 ("coresight: dbgui: Add snapshot of
 Coresight debugUI driver")'.

Change-Id: I5a22a83b8e5ec3ca9e24366c17225b1c93e71a0e
Signed-off-by: lokesh kumar <lokekuma@codeaurora.org>
Signed-off-by: Sivasri Kumar Vanka <sivasri@codeaurora.org>