stm32mp1: Add support for raw NAND boot device

STM32MP1 platform is able to boot from raw NAND devices.
These modifications add this support using the new
raw NAND framework.

Change-Id: I9e9c2b03930f98a5ac23f2b6b41945bef43e5043
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
diff --git a/plat/st/stm32mp1/include/stm32mp1_boot_device.h b/plat/st/stm32mp1/include/stm32mp1_boot_device.h
new file mode 100644
index 0000000..ae6b02b
--- /dev/null
+++ b/plat/st/stm32mp1/include/stm32mp1_boot_device.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2019, STMicroelectronics - All Rights Reserved
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STM32MP1_BOOT_DEVICE_H
+#define STM32MP1_BOOT_DEVICE_H
+
+#include <drivers/raw_nand.h>
+
+int plat_get_raw_nand_data(struct rawnand_device *device);
+
+#endif /* STM32MP1_BOOT_DEVICE_H */