AudioFlinger: implement device specific audio effects

Add management of audio effects applied to a specific input
or output audio device.

A new class DeviceEffectProxy derived from Effectbase is added
to represent an effect attached to a particular audio device type and
address. This proxy manages one or more actual EffectModule instances
automatically added to a playback or capture thread or directly to the
audio HAL when the targeted audio device is used by an audio patch.

A new DeviceEffectManager class is added to manage creation and release
of DeviceEffectProxy instances and monitor creation and release of audio
patches and create or release actual effect instances accordingly.

Bug: 136294538
Test: make

Change-Id: I23b9f9db4459136039c5ee327cf3b1aefa7db5af
diff --git a/media/libaudiohal/impl/DeviceHalLocal.h b/media/libaudiohal/impl/DeviceHalLocal.h
index 36db72e..d85e2a7 100644
--- a/media/libaudiohal/impl/DeviceHalLocal.h
+++ b/media/libaudiohal/impl/DeviceHalLocal.h
@@ -106,6 +106,9 @@
     // List microphones
     virtual status_t getMicrophones(std::vector<media::MicrophoneInfo> *microphones);
 
+    status_t addDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
+    status_t removeDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
+
     virtual status_t dump(int fd);
 
     void closeOutputStream(struct audio_stream_out *stream_out);