scripts: kconfig: add dt_compat_on_bus() helper

This can be used from Kconfig to detect if any enabled nodes of a
compatible are on a bus. This can be useful if a compatible might
appear on multiple buses, to enable them by default from application
code without having to change prj.conf settings depending on what's in
the devicetree.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
1 file changed