Fix for issue : 3450195 Adapt to the recent changes of awesome player in video editor preview player

Change-Id: Ibd15264837dab32464fb90e75cf6d3d323cbbae3
diff --git a/libvideoeditor/lvpp/VideoEditorAudioPlayer.cpp b/libvideoeditor/lvpp/VideoEditorAudioPlayer.cpp
index e699fbe..48d43b4 100755
--- a/libvideoeditor/lvpp/VideoEditorAudioPlayer.cpp
+++ b/libvideoeditor/lvpp/VideoEditorAudioPlayer.cpp
@@ -38,6 +38,7 @@
 
     LOGV("VideoEditorAudioPlayer");
     mBGAudioPCMFileHandle = NULL;
+    mAudioProcess = NULL;
     mBGAudioPCMFileLength = 0;
     mBGAudioPCMFileTrimmedLength = 0;
     mBGAudioPCMFileDuration = 0;