ARM64: zynqmp: Enable support for SPL FIT images

Enable support for RAM based FIT images read by SPL.
Empty function for now to keep compiler happy.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/xilinx_zynqmp_zc1751_xm018_dc4_defconfig b/configs/xilinx_zynqmp_zc1751_xm018_dc4_defconfig
index f7f3822..c7f58ba 100644
--- a/configs/xilinx_zynqmp_zc1751_xm018_dc4_defconfig
+++ b/configs/xilinx_zynqmp_zc1751_xm018_dc4_defconfig
@@ -7,6 +7,7 @@
 CONFIG_DEFAULT_DEVICE_TREE="zynqmp-zc1751-xm018-dc4"
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
+CONFIG_SPL_LOAD_FIT=y
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="ZynqMP> "
 # CONFIG_CMD_IMLS is not set