Add NXP pca9450 pmic driver.
Signed-off-by: NRobin Gong <yibin.gong@nxp.com>
Reviewed-by: NFrieder Schrempf <frieder.schrempf@kontron.de>
Link: https://lore.kernel.org/r/1593793178-9737-2-git-send-email-yibin.gong@nxp.comSigned-off-by: NMark Brown <broonie@kernel.org>