PM: GPU: Disable GPU OC

We already have a working GPU OC interface.
This option OMAP4430_GPU_OVERCLOCK causes issues in lopgs and might be responsible for kexec rejects on TARGA and EDISON:

[    1.775329,1] omap4_gpu_opp_enable: no gpu_dev, did not enable f=153600000
[    1.775390,1] omap4_gpu_opp_enable: no gpu_dev, did not enable f=384000000
[    1.775390,1] omap4_gpu_opp_enable: no gpu_dev, did not enable f=416000000
Backport all workarounds for usb resume on omap from 3.4

Instead of trying to merge all work-arounds manually into
motorola provided code, just backport cleaner fixes from 3.4.

Change-Id: I0cdf4a8b9aead2c1ae57eec3f48f3bc3ee14f019
EDISON/TARGA: disable smartreflex