kconfig: Move CONFIG_OF_LIBFDT to Kconfig

This patch follows work done by:
"Move CONFIG_OF_LIBFDT to Kconfig"
(sha1: 69e173eb57d1f4848f070c83456096ba5d2ba1b4)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
[trini: Add xpress* to the patch]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/ma5d4evk_defconfig b/configs/ma5d4evk_defconfig
index 39ce550..1448514 100644
--- a/configs/ma5d4evk_defconfig
+++ b/configs/ma5d4evk_defconfig
@@ -12,3 +12,5 @@
 CONFIG_SPI_FLASH=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
+CONFIG_OF_LIBFDT=y
+# CONFIG_EFI_LOADER is not set