trace: Add snapshot of ipc logging driver

This snapshot is taken as of msm-4.19 'commit <5a4fd734e3e0>
("Merge "msm: audio: support for gapless_pcm"")'.

In addition, replace arch_counter_get_cntvct() with
__arch_counter_get_cntvct(), update copyrights and use simple_open
instead of creating redundant file operation functions.

Change-Id: I6336d21e2f6a385a6364aa518b74dca69771b783
Signed-off-by: Chris Lew <clew@codeaurora.org>