[Catalyst] Support Getter API for settings service

NO_IFTTT=Catalyst only

Bug: 373895596
Flag: com.android.settings.flags.catalyst_service
Test: devtool
Change-Id: I367f350d2192d1285bf355a9e45c2d9bec11fa44

src/com/android/settings/display/PeakRefreshRateSwitchPreference.kt

@@ -49,6 +49,9 @@ class PeakRefreshRateSwitchPreference :
     override fun storage(context: Context): KeyValueStore =
         PeakRefreshRateStore(context, SettingsSystemStore.get(context))
 
+    override fun getReadPermit(context: Context, myUid: Int, callingUid: Int) =
+        ReadWritePermit.ALLOW
+
     override fun getWritePermit(context: Context, value: Boolean?, myUid: Int, callingUid: Int) =
         ReadWritePermit.ALLOW