Replace use of deprecated C Standard library headers in C++ code.

Change-Id: I9fa6630c7e4bdb2897df34d417635d8c7d8253bc
Signed-off-by: Tyler Chatow <tchatow@gmail.com>
diff --git a/aos/util/wrapping_counter.h b/aos/util/wrapping_counter.h
index a327dd8..ea79ec6 100644
--- a/aos/util/wrapping_counter.h
+++ b/aos/util/wrapping_counter.h
@@ -1,7 +1,7 @@
 #ifndef AOS_UTIL_WRAPPING_COUNTER_H_
 #define AOS_UTIL_WRAPPING_COUNTER_H_
 
-#include <stdint.h>
+#include <cstdint>
 
 namespace aos {
 namespace util {