libc: Update includes

Reflect the changes in the structure of libc.

NB: the include of stdarg.h in nvm_results_helpers.c is not in alphabetical
order because it needs to be included before stdio.h. Fixing this would require
further changes.

Change-Id: I07f62a3450802833408ff3e1f950fd3b643e5e33
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
diff --git a/lib/compiler-rt/builtins/int_lib.h b/lib/compiler-rt/builtins/int_lib.h
index 724d5a4..2acc4bf 100644
--- a/lib/compiler-rt/builtins/int_lib.h
+++ b/lib/compiler-rt/builtins/int_lib.h
@@ -60,9 +60,8 @@
 #define UNUSED __attribute__((unused))
 #endif
 
-#include <sys/limits.h>
-#include <sys/stdint.h>
-#include <sys/types.h>
+#include <limits.h>
+#include <stdint.h>
 
 /* Include the commonly used internal type definitions. */
 #include "int_types.h"