Change boot screen title to "Android is starting" when not upgrading.

Bug: 17565501
Change-Id: Id5741e6e7a40750feee1cd7306e79f7baeec67de
diff --git a/core/java/android/app/ApplicationPackageManager.java b/core/java/android/app/ApplicationPackageManager.java
index 854719d..967e97e 100644
--- a/core/java/android/app/ApplicationPackageManager.java
+++ b/core/java/android/app/ApplicationPackageManager.java
@@ -1609,6 +1609,18 @@
         return null;
     }
 
+    /**
+     * @hide
+     */
+    @Override
+    public boolean isUpgrade() {
+        try {
+            return mPM.isUpgrade();
+        } catch (RemoteException e) {
+            return false;
+        }
+    }
+
     @Override
     public PackageInstaller getPackageInstaller() {
         synchronized (mLock) {