ssl/s3_srvr.c: Fix typo introduced via 69f68237.

Incorrect name used for SSL_AD_INTERNAL_ERROR.
Signed-off-by: Nmancha security <mancha1@zoho.com>
Signed-off-by: NMatt Caswell <matt@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>

ssl/s3_srvr.c

@@ -2537,7 +2537,7 @@ int ssl3_get_client_key_exchange(SSL *s)
                                                         session->master_key,
                                                         pms, outl);
         if (s->session->master_key_length < 0) {
-            al = SSL_INTERNAL_ERROR;
+            al = SSL_AD_INTERNAL_ERROR;
             SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
             goto f_err;
         }