Don't add other's child as header or footer

Previously ListView#addHeaderView and ListView#addFooterView accepts a
view which is other's child.

The CL adds precondition check not to accept other's child and make the
methods consistent with ViewGroup#addView.

Bug: 37726743
Test: CtsWidgetTestCases
Change-Id: Ibe11f162e9af3c153254966796349b94468b08f3