Fix simulator build (1st attempt)

Change-Id: I65a824c17929170b7b2bc75a13e756e92d8fe50a
diff --git a/media/libstagefright/codecs/m4v_h263/enc/src/mp4def.h b/media/libstagefright/codecs/m4v_h263/enc/src/mp4def.h
index df1aa8b..0d5a3e8 100644
--- a/media/libstagefright/codecs/m4v_h263/enc/src/mp4def.h
+++ b/media/libstagefright/codecs/m4v_h263/enc/src/mp4def.h
@@ -18,6 +18,7 @@
 #ifndef _PVDECDEF_H_
 #define _PVDECDEF_H_
 
+#include <stdint.h> // for uint8_t, etc
 #include <stdlib.h>
 #include <string.h>