msm: kgsl: remove the sample_time_ms and let the governor run its idle_check freely like Qualcomm intends. I was seeing some frames being lost because the sample_time_ms was too big.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>

Conflicts:
	drivers/gpu/msm/kgsl_pwrscale_trustzone.c