arm: mxs: Provide Kconfig option to disable battery charging at IMX28 PMU

This new Kconfig option allows disabling the in-PMU battery charging
block. This may be required when DCDC_BAT source is powered not from
battery, but from already regulated, good quality source.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
2 files changed