mfd: pm8xxx-misc: Add pm8xxx stay on API

The API configures the PMIC to ignore the PS_HOLD low
signal, which can be used during debugging.

Change-Id: I162657934e34da081eb897d64ffed36ad48e4eff
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
2 files changed