net/ethernet: sc92031 is not Realtek

While the SC92031 could be found on fake "Realtek" NICs, it has no
relationship to Realtek, and is actually from Silan.

Create a new subdirectory for silan and move sc92031 there.

Signed-off-by: Cesar Eduardo Barros <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/ethernet/Kconfig

···
 	  will be called s6gmac.
 
 source "drivers/net/ethernet/seeq/Kconfig"
+source "drivers/net/ethernet/silan/Kconfig"
 source "drivers/net/ethernet/sis/Kconfig"
 source "drivers/net/ethernet/sfc/Kconfig"
 source "drivers/net/ethernet/sgi/Kconfig"

drivers/net/ethernet/Makefile

···
 obj-$(CONFIG_NET_VENDOR_RDC) += rdc/
 obj-$(CONFIG_S6GMAC) += s6gmac.o
 obj-$(CONFIG_NET_VENDOR_SEEQ) += seeq/
+obj-$(CONFIG_NET_VENDOR_SILAN) += silan/
 obj-$(CONFIG_NET_VENDOR_SIS) += sis/
 obj-$(CONFIG_SFC) += sfc/
 obj-$(CONFIG_NET_VENDOR_SGI) += sgi/

drivers/net/ethernet/realtek/Kconfig

···
 	  To compile this driver as a module, choose M here: the module
 	  will be called r8169.  This is recommended.
 
-config SC92031
-	tristate "Silan SC92031 PCI Fast Ethernet Adapter driver (EXPERIMENTAL)"
-	depends on PCI && EXPERIMENTAL
-	select CRC32
-	---help---
-	  This is a driver for the Fast Ethernet PCI network cards based on
-	  the Silan SC92031 chip (sometimes also called Rsltek 8139D). If you
-	  have one of these, say Y here.
-
-	  To compile this driver as a module, choose M here: the module
-	  will be called sc92031.  This is recommended.
-
 endif # NET_VENDOR_REALTEK

drivers/net/ethernet/realtek/Makefile

···
 obj-$(CONFIG_8139TOO) += 8139too.o
 obj-$(CONFIG_ATP) += atp.o
 obj-$(CONFIG_R8169) += r8169.o
-obj-$(CONFIG_SC92031) += sc92031.o

drivers/net/ethernet/silan/Kconfig

···
+#
+# Silan device configuration
+#
+
+config NET_VENDOR_SILAN
+	bool "Silan devices"
+	default y
+	depends on PCI && EXPERIMENTAL
+	---help---
+	  If you have a network (Ethernet) card belonging to this class, say Y
+	  and read the Ethernet-HOWTO, available from
+	  <http://www.tldp.org/docs.html#howto>.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about Silan devices. If you say Y, you will be asked for
+	  your specific card in the following questions.
+
+if NET_VENDOR_SILAN
+
+config SC92031
+	tristate "Silan SC92031 PCI Fast Ethernet Adapter driver (EXPERIMENTAL)"
+	depends on PCI && EXPERIMENTAL
+	select CRC32
+	---help---
+	  This is a driver for the Fast Ethernet PCI network cards based on
+	  the Silan SC92031 chip (sometimes also called Rsltek 8139D). If you
+	  have one of these, say Y here.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called sc92031.  This is recommended.
+
+endif # NET_VENDOR_SILAN

drivers/net/ethernet/silan/Makefile

···
+#
+# Makefile for the Silan network device drivers.
+#
+
+obj-$(CONFIG_SC92031) += sc92031.o