Like all other ST sensors, st_lsm6dsx devices have VDD and VDDIO power
lines. Introduce voltage regulators to control them.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/a0427a66360bdec73c3b1fb536a46240f96b2ae7.1605631305.git.lorenzo@kernel.orgSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>