vell: Change battery/AC current sense value
vell: Change battery/AC current sense value

BUG=b:216391312
BRANCH=none
TEST=On Vell. Battery charging current ramp to 6.4A.

Signed-off-by: Devin Lu <052fe648504800b810f29702ef4f3db83fad68bf@quantatw.com>
Change-Id: Ie3805b5214b9ecf977e4911201504376948a9f1c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3450001
Reviewed-by: Boris Mittelberg <46897f4fb5cad4b1d5146ad1fd460d7f4825bbf7@google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec