ARM: renesas: Add R8A77990 E3 Ebisu board

Add support for the R8A77990 Ebisu board.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/board/renesas/ebisu/Makefile b/board/renesas/ebisu/Makefile
new file mode 100644
index 0000000..2741035
--- /dev/null
+++ b/board/renesas/ebisu/Makefile
@@ -0,0 +1,9 @@
+#
+# board/renesas/ebisu/Makefile
+#
+# Copyright (C) 2018 Renesas Electronics Corporation
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y	:= ebisu.o