Add log for refresh time for customized clocks

Test: manual and see log printed in bugreport
Bug: 290746208
Change-Id: Idd7c38cfd5517b99ca6b7c37aece72ba9bf7a980

packages/SystemUI/src/com/android/keyguard/KeyguardClockSwitchController.java

@@ -421,6 +421,7 @@ public class KeyguardClockSwitchController extends ViewController<KeyguardClockS
      * Refresh clock. Called in response to TIME_TICK broadcasts.
      */
     void refresh() {
+        mLogBuffer.log(TAG, LogLevel.INFO, "refresh");
         if (mSmartspaceController != null) {
             mSmartspaceController.requestSmartspaceUpdate();
         }

packages/SystemUI/src/com/android/keyguard/KeyguardStatusViewController.java

@@ -308,6 +308,7 @@ public class KeyguardStatusViewController extends ViewController<KeyguardStatusV
     private KeyguardUpdateMonitorCallback mInfoCallback = new KeyguardUpdateMonitorCallback() {
         @Override
         public void onTimeChanged() {
+            Slog.v(TAG, "onTimeChanged");
             refreshTime();
         }