[IPV4]: annotate ipv4 addresses in struct rtable and struct flowi

	union {

		struct {

			__u32			daddr;

			__u32			saddr;

			__be32			daddr;

			__be32			saddr;

			__u32			fwmark;

			__u8			tos;

			__u8			scope;

	__u16			rt_type;

	__u16			rt_multipath_alg;

	__u32			rt_dst;	/* Path destination	*/

	__u32			rt_src;	/* Path source		*/

	__be32			rt_dst;	/* Path destination	*/

	__be32			rt_src;	/* Path source		*/

	int			rt_iif;

	/* Info on neighbour */

	__u32			rt_gateway;

	__be32			rt_gateway;

	/* Cache lookup keys */

	struct flowi		fl;

	/* Miscellaneous cached information */

	__u32			rt_spec_dst; /* RFC1122 specific destination */

	__be32			rt_spec_dst; /* RFC1122 specific destination */

	struct inet_peer	*peer; /* long-living peer info */

};