Only print out debug message if the definition that makes the variables shows up was actually defined. (issue #9233 reported by serginuez)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@58388 65c4cc65-6c06-0410-ace0-fbb531ad65f3

dsp.c

@@ -1292,8 +1292,10 @@ int ast_dsp_busydetect(struct ast_dsp *dsp)
 	}
 #endif
 #if 1
+#ifndef BUSYDETECT_TONEONLY
 	if (res)
 		ast_log(LOG_DEBUG, "ast_dsp_busydetect detected busy, avgtone: %d, avgsilence %d\n", avgtone, avgsilence);
+#endif
 #endif
 	return res;
 }