arm64: versal: Add mini configuration for Versal

This patch adds new mini target for versal.
This configuration is very minimal in size which runs
from OCM. It contains support for mtest which can be
used for running DDR memory tests.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

include/configs/xilinx_versal_mini_qspi.h

@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Configuration for Xilinx Versal QSPI Flash utility
+ *
+ * (C) Copyright 2018-2019 Xilinx, Inc.
+ * Michal Simek <michal.simek@xilinx.com>
+ * Siva Durga Prasad Paladugu <sivadur@xilinx.com>
+ */
+
+#ifndef __CONFIG_VERSAL_MINI_QSPI_H
+#define __CONFIG_VERSAL_MINI_QSPI_H
+
+#include <configs/xilinx_versal_mini.h>
+
+#undef CONFIG_SYS_INIT_SP_ADDR
+#define CONFIG_SYS_INIT_SP_ADDR	(CONFIG_SYS_TEXT_BASE + 0x20000)
+
+#endif /* __CONFIG_VERSAL_MINI_QSPI_H */