Moved and renamed effect API header files

Moved specific effect header files to
system/media/audio_effects/include/audio_effects
and renamed to lower case (effect_xxx.h).

Change-Id: Icfc2264bfd013cab0395d7e310ada636b9fe3621
diff --git a/media/libeffects/testlibs/EffectReverb.h b/media/libeffects/testlibs/EffectReverb.h
index a239814..8e2cc31 100644
--- a/media/libeffects/testlibs/EffectReverb.h
+++ b/media/libeffects/testlibs/EffectReverb.h
@@ -17,8 +17,8 @@
 #ifndef ANDROID_EFFECTREVERB_H_
 #define ANDROID_EFFECTREVERB_H_
 
-#include <media/EffectEnvironmentalReverbApi.h>
-#include <media/EffectPresetReverbApi.h>
+#include <audio_effects/effect_environmentalreverb.h>
+#include <audio_effects/effect_presetreverb.h>
 
 
 /*------------------------------------