Commit 800d4ded "softmmu: move more files to softmmu/" (v5.2.0)
updated MAINTAINERS for all moved files but one.  Fix that.

Fixes: 800d4ded
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230120170104.359690-1-armbru@redhat.com>