max1720x_battery: support for fade rate

keep the definition of the history data within the gauge driver.
Requires google_battery to export GBMS_TAG_HCNT.

Bug: 223759710
Signed-off-by: AleX Pelosi <[email protected]>
Change-Id: Ia02e5edd994f59df778f652ab8ab52ca1eeacf56
1 file changed