Revert "ozwpan: replace alloc_skb with dev_alloc_skb in ozproto.c"

This reverts commit c3147965.

I shouldn't have applied it, my fault.

Cc: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ozwpan/ozproto.c

@@ -97,7 +97,7 @@ static void oz_send_conn_rsp(struct oz_pd *pd, u8 status)
 	struct oz_elt_connect_rsp *body;
 	int sz = sizeof(struct oz_hdr) + sizeof(struct oz_elt) +
 			sizeof(struct oz_elt_connect_rsp);
-	skb = dev_alloc_skb(sz + OZ_ALLOCATED_SPACE(dev));
+	skb = alloc_skb(sz + OZ_ALLOCATED_SPACE(dev), GFP_ATOMIC);
 	if (skb == NULL)
 		return;
 	skb_reserve(skb, LL_RESERVED_SPACE(dev));