MSCC: add board support for the Ocelots based evaluation boards

Adding the support for 2 boards sharing common code for Ocelot chip:
PCB120 and PCB123

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
diff --git a/board/mscc/ocelot/Kconfig b/board/mscc/ocelot/Kconfig
new file mode 100644
index 0000000..9ddc088
--- /dev/null
+++ b/board/mscc/ocelot/Kconfig
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+config SYS_VENDOR
+	default "mscc"
+
+if SOC_OCELOT
+
+config SYS_BOARD
+	default "ocelot"
+
+config SYS_CONFIG_NAME
+	default "ocelot"
+
+endif