Fix errors in SSL_state_string_long

TLS_ST_SR_NEXT_PROTO means "SSLv3/TLS read next proto"
Fix typo in the message for TLS_ST_SW_CERT_STATUS
Reviewed-by: NAndy Polyakov <appro@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4054)

ssl/ssl_stat.c

 /*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
  * Copyright 2005 Nokia. All rights reserved.
  *
  * Licensed under the OpenSSL license (the "License").  You may not use
@@ -22,9 +22,9 @@ const char *SSL_state_string_long(const SSL *s)
     case TLS_ST_CW_NEXT_PROTO:
         return "SSLv3/TLS write next proto";
     case TLS_ST_SR_NEXT_PROTO:
-        return "SSLv3/TLS write next proto";
+        return "SSLv3/TLS read next proto";
     case TLS_ST_SW_CERT_STATUS:
-        return "SSLv3/TLS write next proto";
+        return "SSLv3/TLS write certificate status";
     case TLS_ST_BEFORE:
         return "before SSL initialization";
     case TLS_ST_OK: