[PATCH v5 2/8] drm/i915/gvt: add some statistic routine for scheduler

[Tian, Kevin]

> From: Ping Gao
> Sent: Tuesday, March 28, 2017 2:48 PM
> 
> Add some statistic routine to collect the time when vGPU is scheduled in/out
> and the time of the last ctx submission.
> 
> Rename some schedule structure.
> 
> Signed-off-by: Ping Gao <ping.a.gao at intel.com>

Reviewed-by: Kevin Tian <kevin.tian at intel.com>