sfc: Bind the sfc driver to any available VF's

Add the device ID of the VF to the PCI device ID table.

Added a boolean flag is_vf in efx_nic_type to differentiate
between a VF and PF at probe time. This flag is useful in later
patches while setting MAC address specially in the
PCI-passthrough case.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index 9498a42..031a338 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -1224,6 +1224,7 @@
  * @hwtstamp_filters: Mask of hardware timestamp filter types supported
  */
 struct efx_nic_type {
+	bool is_vf;
 	unsigned int mem_bar;
 	unsigned int (*mem_map_size)(struct efx_nic *efx);
 	int (*probe)(struct efx_nic *efx);