feat(intel): sdmmc/nand/combo-phy/qspi driver for Agilex5 SoC FPGA

This patch is used to implement sdmmc/nand/combo-phy
driver to support Cadence IP for Agilex5 SoC FPGA.
	1. Added SDMMC/NAND/COMBO-PHY support.
	2. Updated product name -> Agilex5
	3. Updated QSPI base address

Signed-off-by: Jit Loon Lim <jit.loon.lim@intel.com>
Change-Id: I6db689d2b784c9f59a25701ab34517f6f6b0a0e6
diff --git a/plat/intel/soc/common/drivers/nand/nand.h b/plat/intel/soc/common/drivers/nand/nand.h
new file mode 100644
index 0000000..b060a72
--- /dev/null
+++ b/plat/intel/soc/common/drivers/nand/nand.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2022-2023, Intel Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef DDR_H
+#define DDR_H
+
+#include <lib/mmio.h>
+#include "socfpga_handoff.h"
+
+/* FUNCTION DEFINATION */
+/*
+ * @brief Nand controller initialization function
+ *
+ * @hoff_ptr: Pointer to the hand-off data
+ * Return: 0 on success, a negative errno on failure
+ */
+int nand_init(handoff *hoff_ptr);
+
+#endif