msm_serial_hs: Disable debugfs interface
defconfigs: Disable KSM

* It's incompatible with the recent CMA changes
* Some users are stupid
Revert "msm: mdp: Update sync pt. behaviour"

This reverts commit d21204235cb954f2a80da29ba4d4bd011d7d0e98.
Revert "vidc: Use PMEM in case of encoder input buffers"

Play safe and don't enable this yet in AOKP, not sure if it works
correctly without the framework changes.

This reverts commit 63b13cb998de23dff2b1c8e34ea5a6633bf86e7c.