Remove static linking of libstagefright and libmedia_helper from libmedia2_jni

Test: build and boot
Bug: 126159708
Change-Id: Iac1b4c123a985f6f7f6f88efe320f49981c793f4
diff --git a/media/libmedia/Android.bp b/media/libmedia/Android.bp
index 5853e4b..9799cad 100644
--- a/media/libmedia/Android.bp
+++ b/media/libmedia/Android.bp
@@ -259,6 +259,7 @@
     name: "libmedia_player2_util",
 
     srcs: [
+        "AudioParameter.cpp",
         "BufferingSettings.cpp",
         "DataSourceDesc.cpp",
         "MediaCodecBuffer.cpp",