Add LDAP_TAG_LDAPCRED macro.

include/ldap.h

@@ -178,6 +178,7 @@ typedef struct ldapcontrol {
 #define LDAP_TAG_MESSAGE	(ber_tag_t) 0x30U	/* constructed + 16 */
 #define LDAP_TAG_MSGID		(ber_tag_t) 0x02U	/* integer */
 #define LDAP_TAG_LDAPDN		(ber_tag_t) 0x04U	/* octect string */
+#define LDAP_TAG_LDAPCRED	(ber_tag_t) 0x04U	/* octect string */
 #define LDAP_TAG_CONTROLS	(ber_tag_t) 0xa0U	/* context specific + constructed + 0 */
 #define LDAP_TAG_REFERRAL	(ber_tag_t) 0xa3U	/* context specific + constructed + 3 */