Revert "overclocking shouldn't depend on the device being thunderg"

This reverts commit 30e88e2cc5b4367193d458e9d2e0274484ad1e1a.
Revert "acpuclock: OC stability fixes"

This reverts commit cba0abb27200785c159a133dad4256022d5cef08.
Revert "config: overclocking enabled"

This reverts commit 08a0e9bf02bf1b675dfc7296a52d0fd82b7076fc.
Revert "acpuclock: Overclocking added"

This reverts commit aaaf635243b1c0c6be2e8498e1785a36c2e26ee4.
Implement OC properly for msm7x27 and msm7x27T

Change-Id: I747bc1035da201ca992add2ed1948eb87ba6f159