arm: ls1021a: Enable CONFIG_OF_LIBFDT and CONFIG_FIT in defconfig

In defconfig, enable CONFIG_OF_LIBFDT to support booting DT linux
kernel and enable COFNIG_FIT to support FIT image.

Signed-off-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/configs/ls1021aqds_sdcard_ifc_defconfig b/configs/ls1021aqds_sdcard_ifc_defconfig
index 61ab251..ef42d3d 100644
--- a/configs/ls1021aqds_sdcard_ifc_defconfig
+++ b/configs/ls1021aqds_sdcard_ifc_defconfig
@@ -1,6 +1,9 @@
 CONFIG_ARM=y
 CONFIG_TARGET_LS1021AQDS=y
 CONFIG_DEFAULT_DEVICE_TREE="ls1021a-qds-duart"
+CONFIG_OF_LIBFDT=y
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="RAMBOOT_PBL,SPL_FSL_PBL,SD_BOOT"
 CONFIG_HUSH_PARSER=y