Trying to add voltage table support

How to use it ?
To set a specific frequency with a specific voltage
echo "1200000 1200000" > /sys/devices/system/cpu/cpufreq/vdd_table/vdd_levels
analogously set a 1.2Ghz with 1.2V

to increase all voltages in table
echo "+25000" > /sys/devices/system/cpu/cpufreq/vdd_table/vdd_levels