Common: charger: modify VBAT_DET value in the JEITA cool region

Bug: 26526717
Change-Id: If1cdb553db7337253467d4289719e7e33d2a5dee
Reviewed-on: http://mcrd1-22-pc.corpnet.asus/code-review/master/212423


Reviewed-by: Chih-Wei Huang <cw_huang@asus.com>
Tested-by: Chih-Wei Huang <cw_huang@asus.com>