CPUFREQ : pegasusq governor corrected. Helps avoiding people to put unit in Khz  when governor requests it to be Mhz for boost_pulse value 

When users enter a value greater than 2100, it assigns the boost_pluse frequency to 2100 Mhz.

Since all other frequencies variables of this governor have their units in Khz, it is more logical to set boost_pulse as well to Khz unit.

Furthermore, now the storage function set the value of boost_pulse to the user's specified max speed frequency instead of 2100000 when user enters an incorrect or greater value.