Fix typo in LDAP stub (#14313)

Co-authored-by: haszi <[email protected]>

Author: haszi

ext/ldap/ldap.stub.php

@@ -203,7 +203,7 @@
     const LDAP_OPT_X_SASL_USERNAME = UNKNOWN;
 #endif
 
-#ifdef ORALDAP
+#ifdef HAVE_ORALDAP
     /**
      * @var int
      * @cvalue GSLC_SSL_NO_AUTH