sfc: Move the Solarflare drivers

Moves the Solarflare drivers into drivers/net/ethernet/sfc/ and
make the necessary Kconfig and Makefile changes.

CC: Steve Hodgson <[e-mail]>
CC: Ben Hutchings <[e-mail]>
Signed-off-by: Jeff Kirsher <[e-mail]>

MAINTAINERS

···
 M:	Ben Hutchings <[e-mail]>
 L:	[e-mail]
 S:	Supported
-F:	drivers/net/sfc/
+F:	drivers/net/ethernet/sfc/
 
 SGI GRU DRIVER
 M:	Jack Steiner <[e-mail]>

drivers/net/Kconfig

···
 
 	  <http://support.brocade.com>
 
-source "drivers/net/sfc/Kconfig"
-
 source "drivers/net/benet/Kconfig"
 
 endif # NETDEV_10000

drivers/net/Makefile

···
 obj-$(CONFIG_FS_ENET) += fs_enet/
 
 obj-$(CONFIG_VIRTIO_NET) += virtio_net.o
-obj-$(CONFIG_SFC) += sfc/
 
 obj-$(CONFIG_WIMAX) += wimax/
 obj-$(CONFIG_CAIF) += caif/

drivers/net/ethernet/Kconfig

···
 source "drivers/net/ethernet/i825xx/Kconfig"
 source "drivers/net/ethernet/qlogic/Kconfig"
 source "drivers/net/ethernet/racal/Kconfig"
+source "drivers/net/ethernet/sfc/Kconfig"
 source "drivers/net/ethernet/smsc/Kconfig"
 source "drivers/net/ethernet/sun/Kconfig"
 

drivers/net/ethernet/Makefile

···
 obj-$(CONFIG_NET_VENDOR_I825XX) += i825xx/
 obj-$(CONFIG_NET_VENDOR_QLOGIC) += qlogic/
 obj-$(CONFIG_NET_VENDOR_RACAL) += racal/
+obj-$(CONFIG_SFC) += sfc/
 obj-$(CONFIG_NET_VENDOR_SMSC) += smsc/
 obj-$(CONFIG_NET_VENDOR_SUN) += sun/

drivers/net/sfc/Kconfig drivers/net/ethernet/sfc/Kconfig

···
 	select CRC32
 	select I2C
 	select I2C_ALGOBIT
-	help
+	---help---
 	  This driver supports 10-gigabit Ethernet cards based on
 	  the Solarflare SFC4000 and SFC9000-family controllers.
 
···
 	bool "Solarflare SFC4000/SFC9000-family MTD support"
 	depends on SFC && MTD && !(SFC=y && MTD=m)
 	default y
-	help
+	---help---
 	  This exposes the on-board flash memory as MTD devices (e.g.
 	  /dev/mtd1).  This makes it possible to upload new firmware
 	  to the NIC.