arm: imx8mp: Initial MSC SM2S iMX8MP support

Add support for the MSC SM2S-IMX8PLUS SMARC Module. Tested in conjunction
with the MSC SM2-MB-EP1 Mini-ITX Carrier Board.

Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
Signed-off-by: Fabio Estevam <festevam@denx.de>
diff --git a/board/msc/sm2s_imx8mp/Makefile b/board/msc/sm2s_imx8mp/Makefile
new file mode 100644
index 0000000..7908a0c
--- /dev/null
+++ b/board/msc/sm2s_imx8mp/Makefile
@@ -0,0 +1,11 @@
+#
+# Copyright (C) 2021 AVNET Embedded, MSC Technologies GmbH
+#
+# SPDX-License-Identifier:      GPL-2.0
+#
+
+ifdef CONFIG_SPL_BUILD
+obj-y += spl.o lpddr4_timing.o
+else
+obj-y += sm2s_imx8mp.o
+endif