"https://trustedfirmware-a.readthedocs.io/en/latest" the "PLATFORM PORTS" -> HIKey960 ->How to build ->Build Procedure, ${UEFI_TOOLS_DIR}/uefi-build.sh -b ${BUILD_OPTION} -a ../arm-trusted-firmware -s ../optee_os hikey960 " the file uefi-build.sh was deleted in the latest uefi-tools git. Need to update the docs.