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.c b/board/ti/ks2_evm/board.c
index c07d284..e1771d2 100644
--- a/board/ti/ks2_evm/board.c
+++ b/board/ti/ks2_evm/board.c
@@ -13,8 +13,8 @@
 #include <exports.h>
 #include <fdt_support.h>
 #include <asm/arch/ddr3.h>
-#include <asm/arch/emac_defs.h>
 #include <asm/ti-common/ti-aemif.h>
+#include <asm/ti-common/keystone_net.h>
 
 DECLARE_GLOBAL_DATA_PTR;