fix some typos

CLA: trivial

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from openssl#18023)

providers/implementations/kdfs/x942kdf.c

@@ -170,7 +170,7 @@ static int der_encode_sharedinfo(WPACKET *pkt, unsigned char *buf, size_t buflen
  * |cek_oidlen| The length (in bytes) of the key wrapping algorithm oid,
  * |acvp| is the optional blob of DER data representing one or more of the
  *   OtherInfo fields related to |partyu|, |partyv|, |supp_pub| and |supp_priv|.
- *   This field should noramlly be NULL. If |acvp| is non NULL then |partyu|,
+ *   This field should normally be NULL. If |acvp| is non NULL then |partyu|,
  *   |partyv|, |supp_pub| and |supp_priv| should all be NULL.
  * |acvp_len| is the |acvp| length (in bytes).
  * |partyu| is the optional public info contributed by the initiator.