audio_effects: Add stereowide effect

Change-Id: Ic3dcfe7bcaa78689df9b9dcc174de5c8d7b347fd
enable CM DSP
remove dependencies
use device specific power HAL
msm8974: Set 24-bit flag for headphone/speaker

 * Improves postprocessing performance

Change-Id: I8612400b493a9eb3ed28d16d8704857db457e74a
msm8974: Remove extra resampler

Change-Id: I12a2f363a47ac06a45f70549c6bcc1c9698a8602
new wlan config

Change-Id: Ibe0fe31538a08fc7552fba0ef1c2e1e2481610a4