Update renderscript to build AAQ07 #553727 in master-release.

Change-Id: Ida2f6cd58b8632297372665899ec8f24d0e04e9e
diff --git a/renderscript/clang-include/stddef.h b/renderscript/clang-include/stddef.h
index 9e87ee8..eb919b5 100644
--- a/renderscript/clang-include/stddef.h
+++ b/renderscript/clang-include/stddef.h
@@ -43,10 +43,20 @@
 
 #undef NULL
 #ifdef __cplusplus
-#undef __null  // VC++ hack.
-#define NULL __null
+#  if !defined(__MINGW32__) && !defined(_MSC_VER)
+#    define NULL __null
+#  else
+#    define NULL 0
+#  endif
 #else
-#define NULL ((void*)0)
+#  define NULL ((void*)0)
+#endif
+
+#ifdef __cplusplus
+#if defined(_MSC_EXTENSIONS) && defined(_NATIVE_NULLPTR_SUPPORTED)
+namespace std { typedef decltype(nullptr) nullptr_t; }
+using ::std::nullptr_t;
+#endif
 #endif
 
 #define offsetof(t, d) __builtin_offsetof(t, d)