In order to avoid unnecessary pollution of the global symbol namespace
move the driver core exports into their own namespace and import
that into the two bus modules.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Lucas Stankus <lucas.p.stankus@gmail.com>
Link: https://lore.kernel.org/r/20220116180535.2367780-6-jic23@kernel.org