common-qcom: Add PowerHAL

 * New PowerHAL for QCOM devices based on upstream.
 * Requires libqc-opt and mpdecision
 * Includes support for new audio hints
 * Includes hook for external set_interactive bits

Change-Id: Ib5c956fedd1a4aee591b409b1524e95624324480
Merge remote-tracking branch 'cm/cm-11.0' into HEAD