segfault: fix missing alignment declaration
segfault: fix missing alignment declaration

These variables are being fed to sse2 functions, that use aligned
loads.

Signed-off-by: Matthias Räncker <d5b2e48e41a5de53e61bf4dd7cfaf5614dc46ba7@gmx.de>
Change-Id: I796c3483c6f3425d63d9262b02b19da59d536600

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