Revert "lib: Proportions with flexible period"

This reverts commit 84033935d624454b61adcec4d40893c647fb9e20.
GOV: bring in minmax governor
 * CREDITS to @Erasmux
 * I loved this one on my TF101, revive it.
 * Rewritten for new cpufreq API

Signed-off-by: Luis Cruz <ljc2491@gmail.com>
GOV: Minmax part 2
GOV: Fix Minmax for 3.0 kernel ;)