hw/9pfs: Add include file for exported symbol

Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

hw/9pfs/virtio-9p-local.c

@@ -14,6 +14,7 @@
 #include "hw/virtio/virtio.h"
 #include "virtio-9p.h"
 #include "virtio-9p-xattr.h"
+#include "fsdev/qemu-fsdev.h"   /* local_ops */
 #include <arpa/inet.h>
 #include <pwd.h>
 #include <grp.h>