ARM: dts: msm: enable S/W JEITA and step charging for PMI632 charger

Enable software based JEITA and step charging, this allows software to fine
tune FCC and Float voltage of charger at different VBAT and temperature
threshold.

Change-Id: Ie112ed6b693ba24c4e821fbaaaadfa63d2b6cd5d
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>