arm: pdu001: Exend the list of maintained files

Add the PDU001 board specific DT files to MAINTAINERS. This should
help for better tracking of changes to these files.

Signed-off-by: Felix Brack <fb@ltec.ch>
diff --git a/board/eets/pdu001/MAINTAINERS b/board/eets/pdu001/MAINTAINERS
index 95295dd..6997c8d 100644
--- a/board/eets/pdu001/MAINTAINERS
+++ b/board/eets/pdu001/MAINTAINERS
@@ -1,6 +1,8 @@
 PDU001 BOARD
 M:	Felix Brack <fb@ltec.ch>
 S:	Maintained
-F:	board/eets/pdu001/
+F:	board/eets/
 F:	include/configs/pdu001.h
 F:	configs/am335x_pdu001_defconfig
+F:	arch/arm/dts/am335x-pdu001-u-boot.dtsi
+F:	arch/arm/dts/am335x-pdu001.dts