Update maintainer for Versatile Express.

Signed-off-by: Kristian Amlie <kristian.amlie@northern.tech>
diff --git a/board/armltd/vexpress/MAINTAINERS b/board/armltd/vexpress/MAINTAINERS
index 2b3e491..7a54c6b 100644
--- a/board/armltd/vexpress/MAINTAINERS
+++ b/board/armltd/vexpress/MAINTAINERS
@@ -1,5 +1,5 @@
 VERSATILE EXPRESS BOARDS
-M:	Kristian Amlie <kristian.amlie@northern.tech>
+M:	Josef Holzmayr <josef.holzmayr@northern.tech>
 S:	Maintained
 F:	board/armltd/vexpress/
 F:	include/configs/vexpress_ca9x4.h