stm32f4: Add support for stm32f429-discovery board

Signed-off-by: Kamil Lulko <rev13@wp.pl>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/board/st/stm32f429-discovery/Makefile b/board/st/stm32f429-discovery/Makefile
new file mode 100644
index 0000000..7e764e3
--- /dev/null
+++ b/board/st/stm32f429-discovery/Makefile
@@ -0,0 +1,12 @@
+#
+# (C) Copyright 2000-2004
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# (C) Copyright 2015
+# Kamil Lulko, <rev13@wp.pl>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= stm32f429-discovery.o
+obj-y	+= led.o