ARM: renesas: Add R8A77970 V3MSK board and CPLD code

Add board code for the R8A77970 V3MSK board.
Add CPLD sysreset driver to the R-Car V3M SK board.
Extracted from a larger patch by Valentine Barshak.

Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Tam Nguyen <tam.nguyen.xa@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Sync configs and board code with V3M Eagle, squash CPLD driver in]
diff --git a/board/renesas/v3msk/Makefile b/board/renesas/v3msk/Makefile
new file mode 100644
index 0000000..ec493e5
--- /dev/null
+++ b/board/renesas/v3msk/Makefile
@@ -0,0 +1,15 @@
+#
+# board/renesas/v3msk/Makefile
+#
+# Copyright (C) 2019 Renesas Electronics Corporation
+# Copyright (C) 2019 Cogent Embedded, Inc.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+ifdef CONFIG_SPL_BUILD
+obj-y	:= ../rcar-common/gen3-spl.o
+else
+obj-y	:= ../rcar-common/v3-common.o ../rcar-common/common.o
+obj-$(CONFIG_SYSRESET)	+= cpld.o
+endif