sfc: Enable VF's via a write to the sysfs file sriov_numvfs

This patch adds support for the use of sriov_configure on EF10
to enable Virtual Functions while the driver is loaded.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/ethernet/sfc/Makefile
Simple merge

diff --cc drivers/net/ethernet/sfc/ef10.c
Simple merge

diff --cc drivers/net/ethernet/sfc/ef10_sriov.c
Simple merge

diff --cc drivers/net/ethernet/sfc/ef10_sriov.h
Simple merge

diff --cc drivers/net/ethernet/sfc/efx.c
Simple merge

diff --cc drivers/net/ethernet/sfc/net_driver.h
Simple merge

diff --cc drivers/net/ethernet/sfc/siena.c
Simple merge

diff --cc drivers/net/ethernet/sfc/siena_sriov.c
Simple merge

diff --cc drivers/net/ethernet/sfc/siena_sriov.h
Simple merge