* Replace ad5360 driver with a ad53xx driver, designed to have a nicer interface
Add Zotino driver and add to opticlock target for Kasli
Test Zotino on hw:
- Verify all timings on the hardware with a scope
- Verify that we can correctly set and read back all registers in a loop (checks for SI and driver issues)
- check we can set LEDs correctly
- check calibration routine + all si unit functions with a good DVM
- look at DAC transitions on a scope (while triggering of a TTL) on persist to check there are no LDAC glitches etc
To do: update examples and e.g. KC705 device db.