cpufreq: ondemand-sec: Create double sysfs folder

Since some apps extract the sysfs parameters by the governor's name.
cpufreq: Allow A15's to 2GHz and A7's to 200MHz

CPUFreq scaling policies are initialized with stock clock frequencies of 1600/500.
cpufreq: Fake the IKS specific frequency table to stock values

The table is implementation specfic and is used nowhere else, however Samsung's framework uses it for its power savings feature. The power-saving level is determined as a index offset from the maximum frequency.
Discarding entries not in the stock frequency table ensures a correct power-savings mode.