examples: Add missing includes

Fixes: T225

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
(cherry picked from commit 58d53f1397)

examples/sshd_direct-tcpip.c

@@ -27,6 +27,8 @@ clients must be made or how a client should react.
 #ifdef HAVE_ARGP_H
 #include <argp.h>
 #endif
+#include <sys/types.h>
+#include <sys/socket.h>
 #include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>