hammerhead: Configure Krait bionic optimizations

Change-Id: If6ca9db7ec76945045ca35e078898aad011af3aa
hammerhead: Use interactive governor in recovery

Replace perfomance by interactive cpu governor which allows for frequency
scaling. Presently we are only using one compression thread, as this may
change in the future, use it for all available cpus.

Change-Id: I8008144d8ef74b30af9a270fbb1d4b1f0353fc7e
merge changes from Omni 4.4 into local branch