Remove dependencies on hardware/audio_effects.h and EffectsFactoryApi.h

Also remove some outstanding dependencies on hardware/audio.h.

Most of the time, only constants and structs from audio_effects.h
are used, and no actual calls into HAL are made. Move these
definitions into system/audio_effect.h, and generate constants
from TREBLE HAL definition.

For parameters, always use values from AudioParameter class.

There are still some outstanding includes of hardware/audio.h
in code that directly deals with audio modules. Need to extend
libaudiohal interfaces to support required functionality.

Test: make

Change-Id: I0bcdf8ae199485d4d65f3eeb7e7a3b9b5cdb6ab6
diff --git a/services/audioflinger/PatchPanel.cpp b/services/audioflinger/PatchPanel.cpp
index c94ea45..93f634a 100644
--- a/services/audioflinger/PatchPanel.cpp
+++ b/services/audioflinger/PatchPanel.cpp
@@ -27,6 +27,8 @@
 #include "ServiceUtilities.h"
 #include <media/AudioParameter.h>
 
+#include <hardware/audio.h>  // for AUDIO_DEVICE_API_VERSION_...
+
 // ----------------------------------------------------------------------------
 
 // Note: the following macro is used for extremely verbose logging message.  In
@@ -387,7 +389,7 @@
             }
             if (thread == audioflinger->primaryPlaybackThread_l()) {
                 AudioParameter param = AudioParameter();
-                param.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), (int)type);
+                param.addInt(String8(AudioParameter::keyRouting), (int)type);
 
                 audioflinger->broacastParametersToRecordThreads_l(param.toString());
             }