Add enable_is_inverted flag to indicate set enable_mask bits to disable
when using regulator_enable_regmap and friends APIs.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Reviewed-by: NHaojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>