conntrack-tools: fix build on octeon

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 41377

package/network/utils/conntrack-tools/patches/100-compile_fix.patch

+--- a/src/parse.c
++++ b/src/parse.c
+@@ -16,6 +16,7 @@
+  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+  */
+ 
++#include <stdlib.h>
+ #include "network.h"
+ 
+ #include <libnetfilter_conntrack/libnetfilter_conntrack.h>