toshiba: Move the Toshiba drivers

Move the Toshiba ethernet drivers into drivers/net/ethernet/toshiba
and make the necessary Kconfig and Makefile changes.

CC: Geoff Levand <geoff@infradead.org>
CC: Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
CC: Ishizaki Kou <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index d90f47f3..9754247 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -48,6 +48,7 @@
 source "drivers/net/ethernet/stmicro/Kconfig"
 source "drivers/net/ethernet/sun/Kconfig"
 source "drivers/net/ethernet/tehuti/Kconfig"
+source "drivers/net/ethernet/toshiba/Kconfig"
 source "drivers/net/ethernet/via/Kconfig"
 
 endif # ETHERNET