qcom: battery: update ICL split logic

Add support to read minimum input current limit (ICL) supported
by parallel charger. Disable parallel charging if the parallel's
ICL share does not meet this criteria.

Change-Id: I2ac442aa090245b8f9d68ac555e26fcdfb26bc8b
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>