ARM: keystone2: move K2HK board files to common KS2 board directory

This patch moves K2HK board directory to a common Keystone II board
directory. The Board related common functions are moved to a common
keystone board file.

Acked-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Hao Zhang <hzhang@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
diff --git a/board/ti/ks2_evm/Makefile b/board/ti/ks2_evm/Makefile
new file mode 100644
index 0000000..58d77dc
--- /dev/null
+++ b/board/ti/ks2_evm/Makefile
@@ -0,0 +1,10 @@
+#
+# KS2-EVM: board Makefile
+# (C) Copyright 2012-2014
+#     Texas Instruments Incorporated, <www.ti.com>
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y += board.o
+obj-$(CONFIG_K2HK_EVM) += board_k2hk.o
+obj-$(CONFIG_K2HK_EVM) += ddr3_k2hk.o