Revert "mach-tegra: Low Power core overdrive"

This reverts commit efa6d847f2a56cb908e45ed9be210e9e46f38c89.

Conflicts:

	arch/arm/mach-tegra/Kconfig
Revert "overclock: boost ultimate from 1.55 quad to 1.6 quad"

This reverts commit a7e58c2320f6fd013d058565d76bb47a8711bc31.
Revert "Overclock: add ultimate edition to allow quadcore up to 1.55 GHz"

This reverts commit 8d39c30a06a6d87f6c6be2e6a79e5817d4b9a1af.

Conflicts:

	arch/arm/mach-tegra/Kconfig
Revert "Overclocking: enable CPU overclocking"

This reverts commit 9d4385b558e4f8c3c0f3438f95a0c4a4b46da40a.

Conflicts:

	arch/arm/mach-tegra/Kconfig
	arch/arm/mach-tegra/tegra3_speedo.c