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/include/media/AudioSystem.h b/include/media/AudioSystem.h
index 2174b2f..b2699fa 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -17,12 +17,12 @@
 #ifndef ANDROID_AUDIOSYSTEM_H_
 #define ANDROID_AUDIOSYSTEM_H_
 
-#include <hardware/audio_effect.h>
 #include <media/AudioPolicy.h>
 #include <media/AudioIoDescriptor.h>
 #include <media/IAudioFlingerClient.h>
 #include <media/IAudioPolicyServiceClient.h>
 #include <system/audio.h>
+#include <system/audio_effect.h>
 #include <system/audio_policy.h>
 #include <utils/Errors.h>
 #include <utils/Mutex.h>