Declare SSL_R_BLOCK_CIPHER_PAD_IS_WRONG and SSL_R_NO_CIPHERS_SPECIFIED.

nginx consumes these error codes without #ifdefs. Continue to define
them for compatibility, even though we never emit them.

BUG=95

Change-Id: I1e991987ce25fc4952cc85b98ffa050a8beab92e
Reviewed-on: https://boringssl-review.googlesource.com/10446
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>

ssl/ssl_lib.c

diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c
index 52701f4..4c3b40e 100644
--- a/ssl/ssl_lib.c
+++ b/ssl/ssl_lib.c
@@ -168,6 +168,11 @@
  * to avoid downstream churn. */
 OPENSSL_DECLARE_ERROR_REASON(SSL, UNKNOWN_PROTOCOL)
 
+/* The following errors are no longer emitted, but are used in nginx without
+ * #ifdefs. */
+OPENSSL_DECLARE_ERROR_REASON(SSL, BLOCK_CIPHER_PAD_IS_WRONG)
+OPENSSL_DECLARE_ERROR_REASON(SSL, NO_CIPHERS_SPECIFIED)
+
 /* Some error codes are special. Ensure the make_errors.go script never
  * regresses this. */
 OPENSSL_COMPILE_ASSERT(SSL_R_TLSV1_ALERT_NO_RENEGOTIATION ==