tile: Move the Tilera driver

Move the Tilera driver into drivers/net/ethernet/tile and
make the necessary Kconfig and Makefile changes.

Updated the Kconfig so that the options defualt to y if TILE kernel.

CC: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index f011665..cff6ef5 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -156,6 +156,7 @@
 source "drivers/net/ethernet/sun/Kconfig"
 source "drivers/net/ethernet/tehuti/Kconfig"
 source "drivers/net/ethernet/ti/Kconfig"
+source "drivers/net/ethernet/tile/Kconfig"
 source "drivers/net/ethernet/toshiba/Kconfig"
 source "drivers/net/ethernet/tundra/Kconfig"
 source "drivers/net/ethernet/via/Kconfig"