Save setup flow state when persisting activity state.

b/12664693

Change-Id: I90c98f720b4d1976f1982e778370a4218fa9832c
diff --git a/src/com/android/email/activity/setup/AccountSetupFinal.java b/src/com/android/email/activity/setup/AccountSetupFinal.java
index 765fbaf..052b617 100644
--- a/src/com/android/email/activity/setup/AccountSetupFinal.java
+++ b/src/com/android/email/activity/setup/AccountSetupFinal.java
@@ -104,6 +104,7 @@
     public void onSaveInstanceState(Bundle outState) {
         super.onSaveInstanceState(outState);
         outState.putBoolean(SAVESTATE_IS_PROCESSING_KEY, mIsProcessing);
+        outState.putInt(SAVESTATE_STATE, mState);
     }
 
     /**