MAINTAINERS: DFU: Change e-mail address for DFU maintainer

Despite I leave Samsung by the end of the year, I'm going to maintain DFU
in u-boot.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 53603d1..c2085ca 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -242,7 +242,7 @@
 F:	arch/m68k/
 
 DFU
-M:	Lukasz Majewski <l.majewski@samsung.com>
+M:	Lukasz Majewski <l.majewski@majess.pl>
 S:	Maintained
 T:	git git://git.denx.de/u-boot-dfu.git
 F:	drivers/dfu/