Added Custom Voltage version 3.

Signed-off-by: Dan Trifan <jimsth@gmail.com>

Conflicts:
	arch/arm/mach-omap2/dvfs.c
	arch/arm/mach-omap2/omap2plus-cpufreq.c
WE HAVE TO GO BACK, and revert this damn dsp_c0
Ti thought to correct dsp to dsp_c0, since this is the right name. However, Custom Voltage still knows this as DSP so i won't bother to change it in the custom_voltage.c code. Let's revert so everything it's easier.