Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 826661b..5436c69 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -1034,7 +1034,7 @@
 *    association.
 *
 * This means that any chunks that can help us identify the association need
-* to be looked at to find this assocation.
+* to be looked at to find this association.
 */
 static struct sctp_association *__sctp_rcv_walk_lookup(struct sk_buff *skb,
 				      const union sctp_addr *laddr,