examples: fix build on FreeBSD.

Missing header for AF_INET/6. Another small
difference between BSD and Linux et al.

src/examples/ecore/efl_net_ip_address_example.c

@@ -12,6 +12,9 @@
 #ifdef HAVE_ARPA_INET_H
 # include <arpa/inet.h>
 #endif
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
 
 static int retval = EXIT_SUCCESS;
 static Eina_List *resolving = NULL;