fix typos in net/sched/* files

This patch fixes typos in net/sched/* files.
Signed-off-by: Taichi Nishimura <awkrail01@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/cls_flower.c

@@ -1057,7 +1057,7 @@ static void fl_set_key_pppoe(struct nlattr **tb,
 	 * because ETH_P_PPP_SES was stored in basic.n_proto
 	 * which might get overwritten by ppp_proto
 	 * or might be set to 0, the role of key_val::type
-	 * is simmilar to vlan_key::tpid
+	 * is similar to vlan_key::tpid
 	 */
 	key_val->type = htons(ETH_P_PPP_SES);
 	key_mask->type = cpu_to_be16(~0);

net/sched/em_meta.c

@@ -44,7 +44,7 @@
  * 	be provided for non-numeric types.
  *
  * 	Additionally, type dependent modifiers such as shift operators
- * 	or mask may be applied to extend the functionaliy. As of now,
+ * 	or mask may be applied to extend the functionality. As of now,
  * 	the variable length type supports shifting the byte string to
  * 	the right, eating up any number of octets and thus supporting
  * 	wildcard interface name comparisons such as "ppp%" matching

net/sched/sch_pie.c

@@ -319,7 +319,7 @@ void pie_calculate_probability(struct pie_params *params, struct pie_vars *vars,
 	}
 
 	/* If qdelay is zero and backlog is not, it means backlog is very small,
-	 * so we do not update probabilty in this round.
+	 * so we do not update probability in this round.
 	 */
 	if (qdelay == 0 && backlog != 0)
 		update_prob = false;