ipvs: Correct spelling in comments

Correct some spelling errors flagged by codespell and found by inspection.

Signed-off-by: Simon Horman <[e-mail]>
Reviewed-by: Horatiu Vultur <[e-mail]>
Signed-off-by: Pablo Neira Ayuso <[e-mail]>

include/net/ip_vs.h

···
 	spinlock_t              lock;           /* lock for state transition */
 	volatile __u16          state;          /* state info */
 	volatile __u16          old_state;      /* old state, to be used for
-						 * state transition triggerd
+						 * state transition triggered
 						 * synchronization
 						 */
 	__u32			fwmark;		/* Fire wall mark from skb */
···
 	u16			protocol;
 	union nf_inet_addr	addr;		/* virtual ip address */
 	__be16			port;
-	u32			fwmark;		/* firwall mark of service */
+	u32			fwmark;		/* firewall mark of service */
 
 	/* virtual service options */
 	char			*sched_name;
···
 	struct ipvs_sync_daemon_cfg	bcfg;	/* Backup Configuration */
 	/* net name space ptr */
 	struct net		*net;            /* Needed by timer routines */
-	/* Number of heterogeneous destinations, needed becaus heterogeneous
+	/* Number of heterogeneous destinations, needed because heterogeneous
 	 * are not supported when synchronization is enabled.
 	 */
 	unsigned int		mixed_address_family_dests;