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/configs/libretech-ac_defconfig b/configs/libretech-ac_defconfig
index f6ee4c5..deb79cb 100644
--- a/configs/libretech-ac_defconfig
+++ b/configs/libretech-ac_defconfig
@@ -1,5 +1,7 @@
 CONFIG_ARM=y
 CONFIG_SYS_CONFIG_NAME="libretech-ac"
+CONFIG_SYS_VENDOR="libre-computer"
+CONFIG_SYS_BOARD="aml-s805x-ac"
 CONFIG_ARCH_MESON=y
 CONFIG_TEXT_BASE=0x01000000
 CONFIG_NR_DRAM_BANKS=1