board: libretech-ac: move board support into dedicated directory

The libretech-ac aka aml-s805x-ac supports mainline U-boot
from a dedicated SPI flash, move the board support into
a dedicated vendor/board subdirectory in order to support
vendor specific customization.

It also aligns with the vendor downstream changes.

Link: https://lore.kernel.org/r/20240917-u-boot-topic-dynamic-uuid-v2-1-416e39c6e271@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
diff --git a/board/libre-computer/aml-s805x-ac/Makefile b/board/libre-computer/aml-s805x-ac/Makefile
new file mode 100644
index 0000000..b4367ea
--- /dev/null
+++ b/board/libre-computer/aml-s805x-ac/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2016 BayLibre, SAS
+# Author: Neil Armstrong <narmstrong@baylibre.com>
+
+obj-y	:= aml-s805x-ac.o