arm: nuvoton: Add support for Nuvoton NPCM845 BMC

Add basic support for the Nuvoton NPCM845 EVB (Arbel).

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
diff --git a/board/nuvoton/arbel_evb/Kconfig b/board/nuvoton/arbel_evb/Kconfig
new file mode 100644
index 0000000..efe8597
--- /dev/null
+++ b/board/nuvoton/arbel_evb/Kconfig
@@ -0,0 +1,18 @@
+if TARGET_ARBEL_EVB
+
+config SYS_BOARD
+	default "arbel_evb"
+
+config SYS_VENDOR
+	default "nuvoton"
+
+config SYS_CONFIG_NAME
+	default "arbel"
+
+config SYS_MEM_TOP_HIDE
+	hex "Reserved TOP memory"
+	default 0xB000000
+	help
+	  Reserve memory for ECC/GFX/VCD/ECE.
+
+endif