msm: kgsl: don't forcefully ramp down on sleep if there's still load higher than down_threshold.

Change-Id: Id7dfb3854a75d8ad00e429318ab372e7b1e92adc
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
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.

Change-Id: Ie0a8b87dd1ed271b75777dcaaeb097f6d51838f2
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
msm: kgsl: remove obsolete code.

Change-Id: Icea069b53c51e6d1f864681e4d294c9c491963f3
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>