ARM: rmobile: salvator-x: Move OF_LIBFDT and CMD_FDT to board config

Move these two Kconfig symbols to the salvator-x_defconfig.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/configs/salvator-x_defconfig b/configs/salvator-x_defconfig
index 8f9b5b5..9fb0b89 100644
--- a/configs/salvator-x_defconfig
+++ b/configs/salvator-x_defconfig
@@ -5,9 +5,11 @@
 CONFIG_TARGET_SALVATOR_X=y
 CONFIG_VERSION_VARIABLE=y
 CONFIG_CMD_BOOTZ=y
+CONFIG_CMD_FDT=y
 CONFIG_R8A7795=y
 # CONFIG_CMD_IMI is not set
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_XIMG is not set
 CONFIG_DOS_PARTITION=y
 # CONFIG_MMC is not set
+CONFIG_OF_LIBFDT=y