pound-define EVP_R_BAD_DECRYPT CIPHER_R_BAD_DECRYPT.

(This is one of the most common errors that callers test for.)

Change-Id: Ic39b8dc6b5551de4a25e8517b9bbedf8a4a94d60
Reviewed-on: https://boringssl-review.googlesource.com/5534
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/include/openssl/evp.h b/include/openssl/evp.h
index 99b147e..986196b 100644
--- a/include/openssl/evp.h
+++ b/include/openssl/evp.h
@@ -740,4 +740,9 @@
 #define EVP_R_UNSUPPORTED_PUBLIC_KEY_TYPE 153
 #define EVP_R_UNSUPPORTED_SIGNATURE_TYPE 154
 
+
+/* Compatibility section. */
+
+#define EVP_R_BAD_DECRYPT CIPHER_R_BAD_DECRYPT
+
 #endif  /* OPENSSL_HEADER_EVP_H */