[Bug Fix] "Dock defend string and tips in settings are incorrectly" issue

Symptom: After the dock defend was triggered, the battery tips still
show "Future-Bypass" dock defend mode. It should be the "Active" dock
defend mode.

Root Cause: The original `BatteryInfo.isBatteryDefender` was implemented
by using `longlife`, due to the charging limit also reuse `longlife`
issue, we replace the implementation of `BatteryInfo.isBatteryDefender`
with HAL API call `isTempDefend` and `isDwellDefend`. However, the
dock defend also needs `longlife`, the original
`BatteryInfo.isBatteryDefender`. So the dock defend checking failed
after replacing the implementation of `BatteryInfo.isBatteryDefender`

Solution:
- Add new property isLonglife in BatteryInfo
- Replace all isBatteryDefender reference that needs isLonglife

Bug: 348563863
Test: Manual Test and robotest
Test: http://ab/I08300010291126076 (unit test)
Test: http://ab/I67800010291096764 (robo test)
Flag: EXEMPT bugfix
Change-Id: I58424927522acc29dc49261a2c24829a5b34ef85

src/com/android/settings/fuelgauge/PowerUsageFeatureProviderImpl.java

@@ -247,7 +247,7 @@ public class PowerUsageFeatureProviderImpl implements PowerUsageFeatureProvider
 
     @Override
     public boolean isBatteryDefend(BatteryInfo info) {
-        return info.isBatteryDefender && !isExtraDefend();
+        return info.isLongLife && !isExtraDefend();
     }
 
     @Override