[packman] chromium-ffmpeg build needs a kick for tumbleweed x86_64

[Jimmy Berry]

[  209s] + /usr/bin/xz -dc
/home/abuild/rpmbuild/SOURCES/chromium-47.0.2526.80.tar.xz
[  297s] /bin/tar: Unexpected EOF in archive
[  297s] /bin/tar: Unexpected EOF in archive
[  297s] /bin/tar: Error is not recoverable: exiting now
[  297s] error: Bad exit status from /var/tmp/rpm-tmp.h5Zpua (%prep)

Didn't fail on i586 so unless some sort of bug it may just need a rebuild?

--
Jimmy