regulator: pca9450: add pca9450 pmic driver

Add NXP pca9450 pmic driver.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.d

regulator: pca9450: add pca9450 pmic driver

Add NXP pca9450 pmic driver.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Link: https://lore.kernel.org/r/1593793178-9737-2-git-send-email-yibin.gong@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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