Include assert.h for the compile error we got from try bot linux_clang.

Review URL: http://webrtc-codereview.appspot.com/44005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@108 4adac7df-926f-26a2-2b94-8c16560cd09d

modules/audio_device/main/source/Linux/latebindingsymboltable.h

@@ -28,6 +28,7 @@
 #ifndef WEBRTC_AUDIO_DEVICE_LATEBINDINGSYMBOLTABLE_H
 #define WEBRTC_AUDIO_DEVICE_LATEBINDINGSYMBOLTABLE_H
 
+#include <assert.h>
 #include <stddef.h>  // for NULL
 #include <string.h>