defconfig: reorganize flags

Change-Id: I9676c0c993e54be401a72ca212100ea706b818dc
mach-msm: attempt to force PVS speed bin to 1, allowing 2.26GHz overclocking

Change-Id: I1a46c1d4fd13816ba462b911dcf97899b9f098ba
defconfig: enable CPU OC

Change-Id: If41b6201cd1b9f289a773d0db684e1ffd77acf68
Add build script to generate the flashable zips automatically

Change-Id: I9f1f91b4b974fc4ccc7d08a4a34e29052918ed8a