drm/msm: enable counter trace

Trace counter is not properly showing up on trace as is. Replace it with
proper format by refactoring existing trace to be more generic.

Change-Id: I50abb593cd67c10ceed115380ac0e9d2177f0963
Signed-off-by: Adrian Salido <salidoa@google.com>
Signed-off-by: Christopher Braga <cbraga@codeaurora.org>