msm8660: Use interactive cpufreq governor by default

Change-Id: Iaea8e0f89cfb367e513053519d9e5b24f90a520a
qcom-common: Set power modes in recovery

 * If we don't configure the power modes, RPM may hang on shutdown. This
   was causing the system to assume LPM mode when exiting recovery on
   8660.
 * Fixes QSDB-42

Change-Id: I0615acbe30a1592750b7d6d019048320dc2104c9
qcom-common: Use ondemand governor in recovery

Change-Id: Ied47fc80d5d8aa4d5c15a11ab7a9e55dae1ecde2
qcom-common: Add releasetools for assertions

 * Releasetools extension for adding bootloader version assertion.

Change-Id: I52bf448a0dbaf5078848fadb4fae4d471355b15f