regulator: rk808: Use rdev_get_id() to access id of regulator

RK808_ID_DCDC1 is 0, no need to do subtract RK808_ID_DCDC1.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
1 file changed