[spec] lighting app cluster definitions not up to spec

[andy31415]

Problem

./scripts/idl_lint.py --log-level warn ./examples/lighting-app/lighting-common/lighting-app.matter
2022-06-03 10:20:02 ERROR   ERROR: Required attributes: EP0:Switch does not expose number of positions(0) attribute at ./examples/lighting-app/lighting-common/lighting-app.matter:1897:3
2022-06-03 10:20:02 ERROR   ERROR: Required attributes: EP0:Switch does not expose current position(1) attribute at ./examples/lighting-app/lighting-common/lighting-app.matter:1897:3
2022-06-03 10:20:02 ERROR   Found 2 lint errors

[jmartinez-silabs]

Switch should probably not be enabled at all for the lighting-app and definitely not on EP0

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[stale]

This stale issue has been automatically closed. Thank you for your contributions.

[jepenven-silabs]

Wasn't fixed