board: rockchip: rk3399: Add device tree files to MAINTAINERS

Update MAINTAINERS files for RK3399 boards to include related device
tree files. Also correct a few filenames.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/board/pine64/pinebook-pro-rk3399/MAINTAINERS b/board/pine64/pinebook-pro-rk3399/MAINTAINERS
index 7300ca1..287ed43 100644
--- a/board/pine64/pinebook-pro-rk3399/MAINTAINERS
+++ b/board/pine64/pinebook-pro-rk3399/MAINTAINERS
@@ -2,7 +2,6 @@
 M:	Peter Robinson <pbrobinson@gmail.com>
 S:	Maintained
 F:	board/pine64/pinebook-pro-rk3399/
-F:	include/configs/rk3399-pinebook-pro.h
-F:	arch/arm/dts/rk3399-pinebook-pro.dts
-F:	arch/arm/dts/rk3399-pinebook-pro-u-boot.dtsi
+F:	include/configs/pinebook-pro-rk3399.h
+F:	arch/arm/dts/rk3399-pinebook-pro*
 F:	configs/pinebook-pro-rk3399_defconfig