Support phonetype control for Settings Battery database retention time

Bug: 404740486
Fix: 404740486
Test: atest
Flag: EXEMPT bug fix
Change-Id: Ifc9032e19a5b26e307d1426ea5c07de84e1613f4

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

@@ -64,6 +64,9 @@ public interface PowerUsageFeatureProvider {
     /** Returns an allowlist of app names combined into the system-apps item */
     List<String> getSystemAppsAllowlist();
 
+    /** Returns the data retention days in the database */
+    int getDataRetentionDays();
+
     /** Check whether location setting is enabled */
     boolean isLocationSettingEnabled(String[] packages);