driver: net: consolidate ti's code in separate folder

Add drivers/net/ti/ folder and move all TI's code in this folder for better
maintenance.

Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
diff --git a/drivers/net/ti/Makefile b/drivers/net/ti/Makefile
new file mode 100644
index 0000000..4ab4a27
--- /dev/null
+++ b/drivers/net/ti/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
+
+obj-$(CONFIG_DRIVER_TI_CPSW) += cpsw.o cpsw-common.o
+obj-$(CONFIG_DRIVER_TI_EMAC) += davinci_emac.o
+obj-$(CONFIG_DRIVER_TI_KEYSTONE_NET) += keystone_net.o