ARM: hisilicon: hikey: Enable OF_CONTROL for hikey board.

Currently only the serial pl01x driver is using DT,
and the other drivers still use platform data but
as more DT lands in the upstream kernel the aim is
to migrate the other drivers over to DT as well to
have a fully DT configured hikey u-boot.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/board/hisilicon/hikey/hikey.c b/board/hisilicon/hikey/hikey.c
index 3b484a9..3f0a0cc 100644
--- a/board/hisilicon/hikey/hikey.c
+++ b/board/hisilicon/hikey/hikey.c
@@ -71,6 +71,8 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#if !CONFIG_IS_ENABLED(OF_CONTROL)
+
 static const struct pl01x_serial_platdata serial_platdata = {
 #if CONFIG_CONS_INDEX == 1
 	.base = HI6220_UART0_BASE,
@@ -87,6 +89,7 @@
 	.name = "serial_pl01x",
 	.platdata = &serial_platdata,
 };
+#endif
 
 static struct mm_region hikey_mem_map[] = {
 	{