Update Loop8Test{6,9}Param to test filter8() in mb_lpf_vertical_edge_w()
Update Loop8Test{6,9}Param to test filter8() in mb_lpf_vertical_edge_w()

One branch of filter8() in mb_lpf_vertical_edge_w() was not tested.

Change-Id: I194202d771d9acd6b4e5e600ee2bae89986b49f3

mwgoldsmith/vpx,Topopiccione/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,mwgoldsmith/vpx,ShiftMediaProject/libvpx,mwgoldsmith/vpx,Topopiccione/libvpx,mwgoldsmith/libvpx,Topopiccione/libvpx,mwgoldsmith/libvpx,Topopiccione/libvpx,webmproject/libvpx,mwgoldsmith/libvpx,mwgoldsmith/libvpx,webmproject/libvpx,webmproject/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,mwgoldsmith/vpx,mwgoldsmith/vpx,Topopiccione/libvpx,mwgoldsmith/libvpx,webmproject/libvpx,mwgoldsmith/vpx,ShiftMediaProject/libvpx,ShiftMediaProject/libvpx,mwgoldsmith/libvpx,Topopiccione/libvpx