RK3576 EVB: SPL Loader is not working

The SPL Loader binary for the RK3576 EVB1 does not work:

sre@earth ~ % rockusb download-boot rk3576_spl_loader_v1.08.106.bin
Error: Device is not available: No such device (os error 19)

Caused by:
    No such device (os error 19)