Revert "remove unnecessary blobs"

This reverts commit 2c63314aabab72e0ae43cee0403971c6dab192c5.

Change-Id: Ic97a2bba00f19cf65451991faae5cd713ef7b5c2
remove power HAL and audio_effects.conf

Change-Id: I6c4f333e5ffaf29632c910cb7d7e53cd3c9684b8