net: keystone_net: move header file from arch to ti-common

The header file for the driver should be in correct place.
So move it to "arch/arm/include/asm/ti-common/keystone_net.h"
and correct driver's external dependencies. At the same time
align and correct some definitions.

Acked-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
diff --git a/board/ti/ks2_evm/board.h b/board/ti/ks2_evm/board.h
index 7a613ac..2bbd792 100644
--- a/board/ti/ks2_evm/board.h
+++ b/board/ti/ks2_evm/board.h
@@ -10,7 +10,7 @@
 #ifndef _KS2_BOARD
 #define _KS2_BOARD
 
-#include <asm/arch/emac_defs.h>
+#include <asm/ti-common/keystone_net.h>
 
 extern struct eth_priv_t eth_priv_cfg[];