`checkpatch.pl` requires that dts sources are indented with tabs,
fix all the spaces that slipped in while checkpatch wasn't watching.
Signed-off-by: Jordan Yates <jordan@embeint.com>
Apply initial mode (regulator-initial-mode) as part of the
regulator_common_init_enable call. Update tests to cover this change.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Add a new test that checks if the API works as expected provided we have
a well-behaved implementation. FFF-based fake is used to mock the
implementation behavior.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
