Fix incorrect OpenSSL merge

Author: ndossche

ext/openssl/openssl_backend_common.c

@@ -1886,7 +1886,7 @@ PHP_OPENSSL_API zend_string* php_openssl_encrypt(
 		if (mode.is_aead && tag) {
 			zend_string *tag_str = zend_string_alloc(tag_len, 0);
 
-			if (EVP_CIPHER_CTX_ctrl(cipher_ctx, mode.aead_get_tag_flag, tag_len, ZSTR_VAL(tag_str)) <= 0) {
+			if (EVP_CIPHER_CTX_ctrl(cipher_ctx, mode.aead_get_tag_flag, tag_len, ZSTR_VAL(tag_str)) > 0) {
 				ZSTR_VAL(tag_str)[tag_len] = '\0';
 				ZSTR_LEN(tag_str) = tag_len;
 				ZEND_TRY_ASSIGN_REF_NEW_STR(tag, tag_str);