hammerhead: Configure Krait bionic optimizations

Change-Id: If6ca9db7ec76945045ca35e078898aad011af3aa
Init: tune interactive parameters

Change-Id: I9e603147a985474384341271fc304512049beb05
hh: Update power config

 * Disable cpubw_hwmon and use the standard msm_cpufreq governor. 8974v2
   is not ready for this and performance is lower.
 * Adjust paths for lpm_levels driver.

Change-Id: I1b8e0b1fae8a22b8585563c03345d9ffd0454f4f