Add logging when tile cannot be found

This will help understand why is that tile null

Bug: 279388069
Test: build
Change-Id: I03cbcaf4c88c6bfcf796cf2cffe8ccbadcbedea0

packages/SystemUI/src/com/android/systemui/qs/external/TileServices.java

@@ -339,9 +339,26 @@ public class TileServices extends IQSService.Stub {
             verifyCaller(customTile);
             return customTile.getQsTile();
         }
+        Log.e(TAG, "Tile for token " + token + "not found. "
+                + "Tiles in map: " + availableTileComponents());
         return null;
     }
 
+    private String availableTileComponents() {
+        StringBuilder sb = new StringBuilder("[");
+        synchronized (mServices) {
+            mTokenMap.forEach((iBinder, customTile) ->
+                    sb.append(iBinder.toString())
+                    .append(":")
+                    .append(customTile.getComponent().flattenToShortString())
+                    .append(":")
+                    .append(customTile.getUser())
+                    .append(","));
+        }
+        sb.append("]");
+        return sb.toString();
+    }
+
     @Override
     public void startUnlockAndRun(IBinder token) {
         CustomTile customTile = getTileForToken(token);