Convert libaudioprocessing to Android.bp

See build/soong/README.md for more information

Test: cd frameworks/av/media/libaudioprocessing; mma
Test: atest resampler_tests
Change-Id: Icae927b3d4692f7cf15b296e6bf5529329b22325
diff --git a/media/libaudioprocessing/BufferProviders.cpp b/media/libaudioprocessing/BufferProviders.cpp
index 2d9e1cb..d60560b 100644
--- a/media/libaudioprocessing/BufferProviders.cpp
+++ b/media/libaudioprocessing/BufferProviders.cpp
@@ -19,7 +19,7 @@
 
 #include <audio_utils/primitives.h>
 #include <audio_utils/format.h>
-#include <external/sonic/sonic.h>
+#include <sonic.h>
 #include <media/audiohal/EffectBufferHalInterface.h>
 #include <media/audiohal/EffectHalInterface.h>
 #include <media/audiohal/EffectsFactoryHalInterface.h>