meta-lxatac-software: tacd: update to version with Gen 3 support

[hnez]

There is a slight change in the ADC channel allocation in generation 3, that needs to be reflected in tacd.

TODO before merging:

• [x] Wait for the tacd PR to be merged linux-automation/tacd#66
• [x] Update SRC_URI and SRCREV
• [x] Test on hardware