Revert "cpufreq: import updated ondemand from ChronicKernel/Bruce's kernel"

Not 100& that the governor from pyramid was newer, reverting to original for now

This reverts commit 23c5e45c3f007f47cd099ecd8dfb92ae227ba981.

Change-Id: Ie622bb1be1f7ab18926bc989c60f6299371a127d