vp9: Use INTERP_FILTER for filter_type in vp9_rtcd_defs.pl
vp9: Use INTERP_FILTER for filter_type in vp9_rtcd_defs.pl

Change-Id: I259d152c62864b365490368051f3c3b7d7f2f1c5

webmproject/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,webmproject/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,ShiftMediaProject/libvpx,ShiftMediaProject/libvpx,ShiftMediaProject/libvpx,webmproject/libvpx,webmproject/libvpx