sfc: Clean up struct falcon_board and struct falcon_board_data

Put all static information in struct falcon_board_type and replace it
with a pointer in struct falcon_board.  Simplify probing aocordingly.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 9f3ef38..dc85efa 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1309,7 +1309,7 @@
 		goto out_requeue;
 	if (!efx->port_enabled)
 		goto out_unlock;
-	rc = falcon_board(efx)->monitor(efx);
+	rc = falcon_board(efx)->type->monitor(efx);
 	if (rc) {
 		EFX_ERR(efx, "Board sensor %s; shutting down PHY\n",
 			(rc == -ERANGE) ? "reported fault" : "failed");