Bug#511719: Build got disabled on powerpc

[Sebastian Andrzej Siewior]

The build of this package got "disabled" according to #432666. However,
I don't understand why PowerPC did not get excluded from the
Architectures field in the control file but via a rule in the rules
file.

Gentoo has only x86 and amd64 in arch list, ubuntu ships the same thing
that debian does. I did not find the package in fedora, opensuse or any
other distro which supports powerpc.

I recommend update the Architecture field until someone finds out why it
segfaults.

Sebastian