Settings: fix crash when reset App preference

1. mExtraInfoBridge is null when there is no change
made in any app. Calling reset app preference cause
crash in this state.

2. move initialization of mApplication to onViewCreated
from onCreateView to make sure View has been created.

Issue-id: OPO-760

Change-Id: I7a26b27325b54694d2513e8365482c221a5c6b13