Keep track of the installation status of AB updates

This allows to show the correct labels.

Change-Id: I52f42e042af0df2d091d786c03102cec352b3a5b

src/org/lineageos/updater/controller/ABUpdateInstaller.java

@@ -67,6 +67,8 @@ class ABUpdateInstaller {
                 case UpdateEngine.UpdateStatusConstants.FINALIZING: {
                     int progress = Math.round(percent * 100);
                     mUpdaterController.getActualUpdate(mDownloadId).setInstallProgress(progress);
+                    boolean finalizing = status == UpdateEngine.UpdateStatusConstants.FINALIZING;
+                    mUpdaterController.getActualUpdate(mDownloadId).setFinalizing(finalizing);
                     mUpdaterController.notifyInstallProgress(mDownloadId);
                 }
                 break;