Update buidlroot to version 2016.08.1

bsp/buildroot/package/libsepol/0003-add-stdarg-include.patch

@@ -0,0 +1,18 @@
+Add missing <stdarg.h> include
+
+This is needed to fix the build on uClibc, due to the usage of
+va_list.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Index: b/cil/src/cil_log.h
+===================================================================
+--- a/cil/src/cil_log.h
++++ b/cil/src/cil_log.h
+@@ -30,6 +30,7 @@
+ #define CIL_LOG_H_
+ 
+ #include <stdlib.h>
++#include <stdarg.h>
+ #include <cil/cil.h>
+ 
+ #define MAX_LOG_SIZE 512