imx6, aristaintetos2: add me as maintainer

Add me as Maintainer for the aristainetos2b board.

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/board/aristainetos/MAINTAINERS b/board/aristainetos/MAINTAINERS
index 78c9b69..b463f7b 100644
--- a/board/aristainetos/MAINTAINERS
+++ b/board/aristainetos/MAINTAINERS
@@ -6,3 +6,4 @@
 F:	configs/aristainetos_defconfig
 F:	include/configs/aristainetos2.h
 F:	configs/aristainetos2_defconfig
+F:	configs/aristainetos2b_defconfig