bus: Make BUS_TRANSLATE_RESOURCE behave more like other bus methods

• Return an errno value upon failure, instead of 1.
• Provide a bus_translate_resource() wrapper.
• Implement the generic version, which traverses the hierarchy until a bus driver with a non-trivial implementation is found, in subr_bus.c like other similar default implementations.
• Make ofw_pcib_translate_resource() return an error if a matching PCI address range is not found.
• Make generic_pcie_translate_resource_common() return an int instead of a bool. Fix up callers.

No functional change intended.

Reviewed by: imp, jhb
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32855