mips: jz47xx: Add Creator CI20 platform

Add support for the Creator CI20 platform based on the JZ4780 SoC.

Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Marek Vasut <marex@denx.de>
diff --git a/board/imgtec/ci20/Makefile b/board/imgtec/ci20/Makefile
new file mode 100644
index 0000000..7843b46
--- /dev/null
+++ b/board/imgtec/ci20/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y := ci20.o