Closing folder in onSaveInstanceState

folderInfo.isOpened is part of static model, where is the open folder
state is part of the UI. This resets the static model, when the
UI is about to be reset
This also causes the folders to get closed when launcher gets hidden

Partial revert of: Ie1318b82b497957b99603b11ec338dd50d51b962

Bug: 27596291, 24900496, 27624924
Change-Id: I30c2bb99a19fdd95a1b997d07066f80be812e2c0