LinkStation: fix compiler warning, add a maintainer

out_8 wants a pointer to an unsigned as the first argument. Add a
maintainer for Linkstation boards.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>

MAINTAINERS

diff --git a/MAINTAINERS b/MAINTAINERS
index d1782b4..58f833c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -408,6 +408,10 @@
 
 	svm_sc8xx		MPC8xx
 
+Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+
+	linkstation		MPC8241
+
 -------------------------------------------------------------------------
 
 Unknown / orphaned boards: