kconfiglib: Update to use redesigned 'referenced' API
Update Kconfiglib to get upstream commit eb6c21a9b33a2 ("Turn
MenuNode/Symbol/Choice.referenced() into a @property") in. It converts
the MenuNode.referenced() function into a property, which makes the API
more consistent (read-only stuff uses properties).
Also update scripts/ci/list_undef_kconfig_refs.py to access .referenced
as a property.
Piggyback a small is_num() simplification.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2 files changed
