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/vision/events/tcp_server.cc b/aos/vision/events/tcp_server.cc
index 535c6b4..cf4dd7f 100644
--- a/aos/vision/events/tcp_server.cc
+++ b/aos/vision/events/tcp_server.cc
@@ -1,18 +1,19 @@
 #include "aos/vision/events/tcp_server.h"
 
 #include <arpa/inet.h>
-#include <errno.h>
 #include <fcntl.h>
 #include <netdb.h>
 #include <netinet/in.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 #include <sys/epoll.h>
 #include <sys/socket.h>
 #include <sys/types.h>
 #include <unistd.h>
 
+#include <cerrno>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
 #include "aos/logging/logging.h"
 
 namespace aos {