add a few additional bindings for AuthorityKeyIdentifier in OpenSSL
diff --git a/src/_cffi_src/openssl/x509v3.py b/src/_cffi_src/openssl/x509v3.py
index d8edb97..6e35dac 100644
--- a/src/_cffi_src/openssl/x509v3.py
+++ b/src/_cffi_src/openssl/x509v3.py
@@ -189,7 +189,9 @@
void BASIC_CONSTRAINTS_free(BASIC_CONSTRAINTS *);
/* This is a macro defined by a call to DECLARE_ASN1_FUNCTIONS in the
x509v3.h header. */
+AUTHORITY_KEYID *AUTHORITY_KEYID_new(void);
void AUTHORITY_KEYID_free(AUTHORITY_KEYID *);
+int i2d_AUTHORITY_KEYID(AUTHORITY_KEYID *, unsigned char **);
NAME_CONSTRAINTS *NAME_CONSTRAINTS_new(void);
void NAME_CONSTRAINTS_free(NAME_CONSTRAINTS *);