arm: histb: hi3798mv200: add initial support for Hi3798MV200 HC2910-2AGHD05 board

A board with Hi3798MV200 SoC and various peripherals. Details are in the
board README.md.

Signed-off-by: Yang Xiwen <forbidden405@outlook.com>
diff --git a/board/skyworth/hc2910-2aghd05/Makefile b/board/skyworth/hc2910-2aghd05/Makefile
new file mode 100644
index 0000000..193fd15
--- /dev/null
+++ b/board/skyworth/hc2910-2aghd05/Makefile
@@ -0,0 +1 @@
+obj-y	:= hc2910-2aghd05.o