power: battery: Add support to enable PPS to work in CV mode

Add support to enable PPS to work in CV mode by allowing ICL
to be split for PPS adapter where the maximum ILIM  for it is
been limited to min(qc4_icl_ua, pd_current_max).

Change-Id: Iac3b4a4964783eb7f60a93e2237058f687e3de09
Signed-off-by: Ashish Chavan <ashichav@codeaurora.org>