MAINTAINERS: Downgrade ppc405 to Odd Fixes

As requested by Alex.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/MAINTAINERS b/MAINTAINERS
index cfb7394..9d4ccfc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -349,7 +349,7 @@
 405
 M: Alexander Graf <agraf@suse.de>
 L: qemu-ppc@nongnu.org
-S: Maintained
+S: Odd Fixes
 F: hw/ppc405_boards.c
 
 e500