Save and restore the instance state of StkDialogActivity correctly

The multi-window feature and the screen zoom feature also cause the
recreation of the activity, but the change of the device configurations
is not correctly handled in the current implementation. The time-out
intent and the slot ID must be saved and stored as expected.

Bug: 31323145
Change-Id: Ica084a46f503fec68372f9f5b4eb7e5ffa804099
1 file changed