media: adv7180: Move adv7180_set_power() and init_device()

media: adv7180: Move adv7180_set_power() and init_device()

Move the two functions adv7180_set_power() and init_device() earlier in
the file so they in future changes can be used from .querystd and
.s_stream as the driver is reworked to drop the usage of .s_power.

While at it fix two style issues in init_device() that checkpatch
complains about.

  - Two cases of indentation issues for function arguments split over
    multiple lines.

  - The repetition of the word 'interrupts' in a comment.

Apart from these style fixes the functions are moved verbatim and there
are no functional changes.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>