board/BuR/brxre1: convert do DM

This commit converts the brxre1 board to DM,
for this we have todo following things:

- add a devicetree-file for this board
- drop all obsolete settings from board header-file
- use dm_i2c_xxx calls for read/write to the resetcontroller
- request gpios before operate them

Serues-cc: trini@konsulko.com
Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
diff --git a/board/BuR/brxre1/MAINTAINERS b/board/BuR/brxre1/MAINTAINERS
index a10d9c1..eb0fe8b 100644
--- a/board/BuR/brxre1/MAINTAINERS
+++ b/board/BuR/brxre1/MAINTAINERS
@@ -4,3 +4,4 @@
 F:	board/BuR/brxre1/
 F:	include/configs/brxre1.h
 F:	configs/brxre1_defconfig
+F:	arch/arm/dts/am335x-brxre1.dts