board: rockchip: Add Bananapi R2Pro Board

Add Bananapi R2 Pro board.

tested:
- sdcard
- both front usb-ports
- sata
- wan-port

lan-ports are connected to mt7531 switch where driver needs to be
separated from mtk ethernet-driver.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Jonas Karlman <jonas@kwiboo.se>
diff --git a/board/rockchip/evb_rk3568/MAINTAINERS b/board/rockchip/evb_rk3568/MAINTAINERS
index fa8d119..e5b0986 100644
--- a/board/rockchip/evb_rk3568/MAINTAINERS
+++ b/board/rockchip/evb_rk3568/MAINTAINERS
@@ -1,3 +1,10 @@
+BANANAPI-BPI-R2-PRO
+M:	Frank Wunderlich <frank-w@public-files.de>
+S:	Maintained
+F:	configs/bpi-r2-pro-rk3568_defconfig
+F:	arch/arm/dts/rk3568-bpi-r2-pro.dts
+F:	arch/arm/dts/rk3568-bpi-r2-pro-u-boot.dtsi
+
 EVB-RK3568
 M:	Joseph Chen <chenjh@rock-chips.com>
 S:	Maintained