stm32: add support for stm32f7 & stm32f746 discovery board

This patch adds support for stm32f7 family & stm32f746 board.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
diff --git a/board/st/stm32f746-disco/Makefile b/board/st/stm32f746-disco/Makefile
new file mode 100644
index 0000000..db8a0a4
--- /dev/null
+++ b/board/st/stm32f746-disco/Makefile
@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2016
+# Vikas Manocha <vikas.manocha@st.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= stm32f746-disco.o