RDMA/core: fix repeated words in comments

Delete the redundant word 'the'.
Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Link: https://lore.kernel.org/r/20221022060030.50900-1-wangjianli@cdjrlc.comSigned-off-by: Leon Romanovsky <leon@kernel.org>

drivers/infiniband/core/cache.c

@@ -1422,7 +1422,7 @@ int rdma_read_gid_l2_fields(const struct ib_gid_attr *attr,
 			*vlan_id = vlan_dev_vlan_id(ndev);
 		} else {
 			/* If the netdev is upper device and if it's lower
-			 * device is vlan device, consider vlan id of the
+			 * device is vlan device, consider vlan id of
 			 * the lower vlan device for this gid entry.
 			 */
 			netdev_walk_all_lower_dev_rcu(attr->ndev,