cpufreq: interactive: we're safe to use 250ms again.

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

* I think this is about as good as I can get it.  I may still revert but we'll leave it here for now :)

Signed-off-by: Chester Kener <Cl3Kener@gmail.com>
GPU OC: Mystery Solved

* GPU OC is now running better than ever and no kmsg errors reported thus far!

Signed-off-by: Chester Kener <Cl3Kener@gmail.com>
GPU OC: Smoother Ramp up

* Rather than having two 320 MHz steps lets go from 320 MHz to 389 MHz then to 450 MHz so it's not as crazy of a jump

Signed-off-by: Chester Kener <Cl3Kener@gmail.com>

Conflicts:
	arch/arm/boot/dts/msm8974-gpu.dtsi
msm8974: oc to 3014Mhz & uc to 96Mhz

Signed-off-by: Dustin Rinne <dustin.rinne@gmail.com>