board: rockchip: rk3308: Add device tree files and myself to MAINTAINERS

Update MAINTAINERS files for RK3308 boards to include related device
tree files. Also add myself as a reviewer for the ROCK Pi S board.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/board/firefly/firefly-rk3308/MAINTAINERS b/board/firefly/firefly-rk3308/MAINTAINERS
index e584038..b70ff52 100644
--- a/board/firefly/firefly-rk3308/MAINTAINERS
+++ b/board/firefly/firefly-rk3308/MAINTAINERS
@@ -4,3 +4,4 @@
 F:      board/firefly/firefly-rk3308/
 F:      configs/roc-cc-rk3308_defconfig
 F:      include/configs/firefly_rk3308.h
+F:      arch/arm/dts/rk3308-roc-cc*
diff --git a/board/rockchip/evb_rk3308/MAINTAINERS b/board/rockchip/evb_rk3308/MAINTAINERS
index fe2c5f0..abffbb1 100644
--- a/board/rockchip/evb_rk3308/MAINTAINERS
+++ b/board/rockchip/evb_rk3308/MAINTAINERS
@@ -4,10 +4,11 @@
 F:      board/rockchip/evb_rk3308
 F:      include/configs/evb_rk3308.h
 F:      configs/evb-rk3308_defconfig
+F:      arch/arm/dts/rk3308-evb*
 
 ROCK-PI-S
 M:      Akash Gajjar <gajjar04akash@gmail.com>
+R:      Jonas Karlman <jonas@kwiboo.se>
 S:      Maintained
 F:      configs/rock-pi-s-rk3308_defconfig
-F:      arch/arm/dts/rk3308-rock-pi-s.dts
-F:      arch/arm/dts/rk3308-rock-pi-s-u-boot.dtsi
+F:      arch/arm/dts/rk3308-rock-pi-s*