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/ipc_lib/ipc_comparison.cc b/aos/ipc_lib/ipc_comparison.cc
index af1098d..fd1ff93 100644
--- a/aos/ipc_lib/ipc_comparison.cc
+++ b/aos/ipc_lib/ipc_comparison.cc
@@ -4,7 +4,6 @@
 #include <netinet/tcp.h>
 #include <pthread.h>
 #include <semaphore.h>
-#include <stdint.h>
 #include <sys/eventfd.h>
 #include <sys/msg.h>
 #include <sys/sem.h>
@@ -15,6 +14,7 @@
 
 #include <atomic>
 #include <chrono>
+#include <cstdint>
 #include <memory>
 #include <string>
 #include <thread>