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/spm/cactus/cactus_tests_misc.c b/spm/cactus/cactus_tests_misc.c
index 50b8e6a..39eb752 100644
--- a/spm/cactus/cactus_tests_misc.c
+++ b/spm/cactus/cactus_tests_misc.c
@@ -11,7 +11,7 @@
 #include <spm_svc.h>
 #include <sprt_client.h>
 #include <sprt_svc.h>
-#include <types.h>
+#include <stdint.h>
 
 #include "cactus.h"
 #include "cactus_tests.h"