arm64: dts: meson: add libretech-pc support

Add support for the Amlogic based libretech-pc platform.
This platform comes with 2 variant, based on the s905d or s912 SoC.

Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
[narmstrong: update board/amlogic/q200/MAINTAINERS]
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/board/amlogic/q200/MAINTAINERS b/board/amlogic/q200/MAINTAINERS
index d3c5a46..6f00f87 100644
--- a/board/amlogic/q200/MAINTAINERS
+++ b/board/amlogic/q200/MAINTAINERS
@@ -5,3 +5,5 @@
 F:	board/amlogic/q200/
 F:	include/configs/q200.h
 F:	configs/khadas-vim2_defconfig
+F:	configs/libretech-s905d-pc_defconfig
+F:	configs/libretech-s912-pc_defconfig