sfc: Update version, copyright dates, authors

This driver has been mostly rewritten since Michael Brown's initial
work, so swap the order of the authors.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/sfc/bitfield.h
Simple merge

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

diff --cc drivers/net/sfc/efx.h
Simple merge

diff --cc drivers/net/sfc/enum.h
Simple merge

diff --cc drivers/net/sfc/ethtool.c
Simple merge

diff --cc drivers/net/sfc/falcon.c
Simple merge

diff --cc drivers/net/sfc/falcon_boards.c
Simple merge

diff --cc drivers/net/sfc/falcon_gmac.c
Simple merge

diff --cc drivers/net/sfc/falcon_xmac.c
Simple merge

diff --cc drivers/net/sfc/mac.h
Simple merge

diff --cc drivers/net/sfc/mdio_10g.c
Simple merge

diff --cc drivers/net/sfc/mdio_10g.h
Simple merge

diff --cc drivers/net/sfc/mtd.c
Simple merge

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

diff --cc drivers/net/sfc/nic.c
Simple merge

diff --cc drivers/net/sfc/nic.h
Simple merge

diff --cc drivers/net/sfc/phy.h
Simple merge

diff --cc drivers/net/sfc/qt202x_phy.c
Simple merge

diff --cc drivers/net/sfc/rx.c
Simple merge

diff --cc drivers/net/sfc/selftest.c
Simple merge

diff --cc drivers/net/sfc/tenxpress.c
Simple merge

diff --cc drivers/net/sfc/tx.c
Simple merge

diff --cc drivers/net/sfc/workarounds.h
Simple merge