board: at91: sama5d29_curiosity: add initial support for sama5d29_curiosity

Add initial support for sama5d29_curiosity board.

Hardware:
SoC: SAMA5D29 500 MHz
DRAM: LPDDR2 512 MiB
PMIC: MCP16502
Debug: UART0
Flash: QSPI NOR 8 MiB
RGB LCD connector
Mikrobus connectors x 2
SD-Card connectors x 2
USB 2.0 x 2

Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
diff --git a/include/configs/sama5d29_curiosity.h b/include/configs/sama5d29_curiosity.h
new file mode 100644
index 0000000..ef09b8b
--- /dev/null
+++ b/include/configs/sama5d29_curiosity.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Configuration file for the SAMA5D29 CURIOSITY board.
+ *
+ * Copyright (C) 2023 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Mihai Sain <mihai.sain@microchip.com>
+ *
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#define CFG_SYS_AT91_SLOW_CLOCK		32768
+#define CFG_SYS_AT91_MAIN_CLOCK		24000000
+
+#endif