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 <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
index c53ad3a..be5dde0 100644
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -58,6 +58,7 @@
 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/