KGSL: Simple Governor: fix minor logic issue

Signed-off-by: Paul Reioux <reioux@gmail.com>

Conflicts:

	drivers/gpu/msm/kgsl_pwrscale_trustzone.c

Change-Id: I15f39081131bf1d84718de56320cca24ee7d04b1
Merge branch 'android-4.4' of https://github.com/hazedabeast/kernel_msm into android-4.4