p9221_charger: prevent WLC chip OV damage and extend charging range

1. Prevent chip damage during jiggling test
2. Extend charging area and fix FOD trigger issue when
   working with 1P case

Bug: 303420730
Change-Id: I7ac7f7cd9941b68a2354d9ea01f6d81700c4205f
Signed-off-by: YiHsiang Peng <yihsiangpeng@google.com>
(cherry picked from commit 5083a5ca8fb156cf31dcdbdc47af55f525d0d3d9)
3 files changed