drm/msm/sde: add sde bus bw ftraces

Add ftraces to track each of the ib/ab
bw votes for each of the display driver
bus clients.

Change-Id: I222854b0f54e7be88fbb28cbad3a0900f32ffa49
Signed-off-by: Ingrid Gallardo <ingridg@codeaurora.org>
3 files changed