Fix misleading sub-state name and comments
The enum constant had 'ske' in its name while this was a sub-state of the
"write client key exchange" state; corresponding issue in the comment.
diff --git a/include/mbedtls/ssl_internal.h b/include/mbedtls/ssl_internal.h
index c09fd70..97abb9f 100644
--- a/include/mbedtls/ssl_internal.h
+++ b/include/mbedtls/ssl_internal.h
@@ -301,8 +301,8 @@
enum { /* this complements ssl->state with info on intra-state operations */
ssl_ecrs_none = 0, /*!< nothing going on (yet) */
ssl_ecrs_crt_verify, /*!< Certificate: crt_verify() */
- ssl_ecrs_ske_start_processing, /*!< ServerKeyExchange: step 1 */
- ssl_ecrs_ske_ecdh_calc_secret, /*!< ServerKeyExchange: ECDH step 2 */
+ ssl_ecrs_ske_start_processing, /*!< ServerKeyExchange: pk_verify() */
+ ssl_ecrs_cke_ecdh_calc_secret, /*!< ClientKeyExchange: ECDH step 2 */
ssl_ecrs_crt_vrfy_sign, /*!< CertificateVerify: pk_sign() */
} ecrs_state; /*!< current (or last) operation */
size_t ecrs_n; /*!< place for saving a length */