Revert "more cortex-a9 optimization"

This reverts commit 31ffeb2d5ad4cbceaa09ca837629128b0d4ca78a.
Revert "add pegasusq cpufreq governor"

This reverts commit 142477f08b7dfdcb86f1ded4fd1147f6afde8c4a.

It caused freezes.