xsk: export xdp_get_umem_from_qid

Export xdp_get_umem_from_qid for other modules to use.
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

net/xdp/xdp_umem.c

@@ -67,6 +67,7 @@ struct xdp_umem *xdp_get_umem_from_qid(struct net_device *dev,
 
 	return NULL;
 }
+EXPORT_SYMBOL(xdp_get_umem_from_qid);
 
 static void xdp_clear_umem_at_qid(struct net_device *dev, u16 queue_id)
 {