arm: rmobile: Add Stout board support

Stout is an entry level development board based on R-Car H2 SoC (R8A7790)

This commit supports the following peripherals:
- SCIFA, I2C, Ethernet, QSPI, SDHI0/2, CPLD

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/board/renesas/stout/MAINTAINERS b/board/renesas/stout/MAINTAINERS
new file mode 100644
index 0000000..b7098e7
--- /dev/null
+++ b/board/renesas/stout/MAINTAINERS
@@ -0,0 +1,6 @@
+STOUT BOARD
+M:	Cogent Embedded, Inc. <source@cogentembedded.com>
+S:	Maintained
+F:	board/renesas/stout/
+F:	include/configs/stout.h
+F:	configs/stout_defconfig