ARM: dts: msm: change CHG_OK pin to active high for QRD SDM660

PM660 controls SMB1351 by STAT_CHG pin when the parallel is enabled.
the polarity of SMB1351 should be active high, so add a property
in DTS to the polarity.

CRs-Fixed: 2015025
Change-Id: Idca4149c587e9588fce8ba757fa0b7bf0ca5614d
Signed-off-by: Yingwei Zhao <cyizhao@codeaurora.org>