MAINTAINERS: add virtio-fs mailing list

General discussion and patch reviews take place on this list for both
virtiofsd (tools/virtiofsd/*) and the guest kernel module.

Signed-off-by: Connor Kuehl <ckuehl@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Vivek Goyal <vgoyal@redhat.com>
Message-Id: <20210318154157.1357224-1-ckuehl@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

MAINTAINERS

@@ -1916,6 +1916,7 @@ F: tools/virtiofsd/*
 F: hw/virtio/vhost-user-fs*
 F: include/hw/virtio/vhost-user-fs.h
 F: docs/tools/virtiofsd.rst
+L: virtio-fs@redhat.com
 
 virtio-input
 M: Gerd Hoffmann <kraxel@redhat.com>