Fix 1806 build error.

Change-Id: I08c1bf4a8184e0dc60273e3113292480599a2772
diff --git a/mbtk/ql_lib/src/ql_audio.c b/mbtk/ql_lib/src/ql_audio.c
index 69f0361..753e6e0 100755
--- a/mbtk/ql_lib/src/ql_audio.c
+++ b/mbtk/ql_lib/src/ql_audio.c
@@ -406,14 +406,20 @@
 
 int Ql_Mp3_To_Wav(const char *wavpath, char *mp3path)
 {
-//    return 0;
+#if 1
+	return 0;
+#else
     return mbtk_audio_mp3_to_wav(wavpath, mp3path);
+#endif	
 }
 
 int Ql_Mp3_To_Play(char *mp3path, int hdl,int sample_rate)
 {
- //   return 0;
+#if 1
+	return 0;
+#else
     return mbtk_audio_mp3_to_play(mp3path, hdl, sample_rate);
+#endif	
 }
 
 //add by grady, 2018-6-2