ARM: rmobile: Add support salvator-x board

Salvator-x is an entry level development board based on
R-Car H3 SoC (R8A7795). This commit supports SCIF only.

Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/board/renesas/salvator-x/MAINTAINERS b/board/renesas/salvator-x/MAINTAINERS
new file mode 100644
index 0000000..abd05c8
--- /dev/null
+++ b/board/renesas/salvator-x/MAINTAINERS
@@ -0,0 +1,6 @@
+SALVATOR_X BOARD
+M:	Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+S:	Maintained
+F:	board/renesas/salvator-x/
+F:	include/configs/salvator-x.h
+F:	configs/salvator-x_defconfig