Fixed some typos, courtesy of codespell

src/libcharon/plugins/kernel_netlink/kernel_netlink_ipsec.c

@@ -2091,7 +2091,7 @@ METHOD(kernel_ipsec_t, add_sa, status_t,
 		 * checks it marks them "checksum ok" so OA isn't needed. */
 
 		/* if the remote port is set to 0 for UDP-encapsulated per-CPU SAs, we
-		 * increase the treshold for mapping changes as it gets otherwise
+		 * increase the threshold for mapping changes as it gets otherwise
 		 * triggered with every packet */
 		if (data->inbound && !id->src->get_port(id->src) &&
 			!add_uint32(hdr, sizeof(request), XFRMA_MTIMER_THRESH, UINT32_MAX))

src/libstrongswan/crypto/proposal/proposal.c

@@ -1016,7 +1016,7 @@ proposal_t *proposal_create(protocol_id_t protocol, uint8_t number)
 }
 
 /**
- * Add supporte KE methods to proposal
+ * Add supported KE methods to proposal
  */
 static void add_supported_ke_methods(private_proposal_t *this)
 {