Process video decode hints and display-off hints in the power HAL. Also move to using the perflock API to request system-level parameter changes. Change-Id: I42e33d6d22016b02d85572a69fee64aadf36da58
Add platform-specific power HAL libraries to the built product. Change-Id: Ie6e8d3af3f5f83618bc66ccc2f420d209c53ce12