[TCP] htcp: Better packing of struct htcp.

	u32	alpha;		/* Fixed point arith, << 7 */

	u8	beta;           /* Fixed point arith, << 7 */

	u8	modeswitch;     /* Delay modeswitch until we had at least one congestion event */

	u32	last_cong;	/* Time since last congestion event end */

	u32	undo_last_cong;

	u16	pkts_acked;

	u32	packetcount;

	u32	minRTT;

	u32	maxRTT;

	u32	last_cong;	/* Time since last congestion event end */

	u32	undo_last_cong;

	u32	undo_maxRTT;

	u32	undo_old_maxB;