Fixed some typos, courtesy of codespell

src/libstrongswan/credentials/auth_cfg.h

@@ -141,7 +141,7 @@ extern enum_name_t *auth_rule_names;
  * RFC4739 defines multiple authentication rounds. This class defines such
  * a round from a configuration perspective, either for the local or the remote
  * peer. Local configs are called "rulesets". They define how we authenticate.
- * Remote peer configs are called "constraits". They define what is needed to
+ * Remote peer configs are called "constraints". They define what is needed to
  * complete the authentication round successfully.
  *
  * @verbatim

src/libstrongswan/credentials/certificates/certificate_printer.h

@@ -62,7 +62,7 @@ struct certificate_printer_t {
  *
  * @param f				file where print output is directed to (usually stdout)
  * @param detailed		print more detailed certificate information
- * @param utc			print time inforamtion in UTC
+ * @param utc			print time information in UTC
  */
 certificate_printer_t* certificate_printer_create(FILE *f, bool detailed,
 												  bool utc);