Revert "msm: acpuclock-8064: smoother vdd curves for better oc stability"

This reverts commit 29b4f94144ab9a67810f38092d722f878d06e358.
Revert "msm: acpuclock-8064: increase l2 speed gradually"

This reverts commit 60a88e84c1c48985992343b5fa8fc1e2bfeb8807.
Revert "msm: acpuclock-8064: smoother vdd curves"

This reverts commit 7c1c5a01b731e1835f3a4a2d6e6729367f53980b.
Revert "mach-msm: acpuclock: smooth vdd profiles of CPU overclocking"

This reverts commit 4f5861e86d78c324b5b34d51ff00825368f49875.
Revert "Enable optional CPU overclocking"

This reverts commit e4b01433894deffb9fa45dfc13c87dfb583173a4.

Conflicts:
	arch/arm/configs/cyanogenmod_e970_defconfig
msm: acpuclock-8064: added low (162Mhz) and high (1944Mhz) cpu
msm: acpuclock-8064: use higher bus speed at lower CPU freqs

Thanks to @bedalus and @mrg666

Bedalus suggested that if lower CPU frequencies can offer higher bus
speed,
GPU use during games wouldn't require higher CPU frequency.
My testing demonstrated 4C drop in CPU temp during 3DMark benchmark.
Still needs to be tested for everyday use.
msm: cpufreq: added ultra low (81Mhz) cpu clock frequencies