Support the BMM150 being on a power domain, which may not be powered at
boot. For example, Nordic Thingy53.
Signed-off-by: Jordan Yates <jordan@embeint.com>
Some functions in the bmm150 driver were depending on a define
that was never used. Changed it to the one that is actually defined.
Signed-off-by: Maximilian Deubel <maximilian.deubel@nordicsemi.no>