Making sure QS tile pages are reset when collapsing split shade

Expanded state passed to QSPanelController was always true for split shade. Making it work as qsExpanded in QSFragment means controller can react to not expanded state correctly and reset tile pages.
That required some extra changes in NPVC, otherwise QS expansion was broken when rotating between split and portrait shade.

This should have been done some time ago already as QS expanded state is working properly in split shade, that is qsExpanded is true when split shade is expanded, false otherwise.

Fixes: 247799702
Test: QSFragmentTest
Test: expand split shade -> swipe to another qs tiles page -> close split shade and expand it again -> qs tiles should be back to the first page
Change-Id: Id5865a18273e9e3becbdc3a85be975ea1e0dae7b