[packman] timeout for emulated ARM too low

[Olaf Hering]

ffmpeg is now supposed to build for armv6l, but it still fails because
building the tetex stuff from rpm %post scripts takes too long. And
there is no output logged for some reason. I suggest to either fix the
missing output or increase the timeout. On my system it takes more than
6 hours.

Olaf

...
[  422s] brp-extract-appdata-2012.02.13-16.3.2 ########################################
[  422s] build-mkbaselibs-20131015-1.2         ########################################
[  422s] yasm-1.2.0-7.1.2                      ########################################
[  429s] kernel-obs-build-1-1.2                ########################################
[23017s] removing nis flags from /oscbuild/pmbs-api.links2linux.org-armv6l-openSUSE_13.1_ARM-Essentials-ffmpeg/etc/nsswitch.conf...
[23017s] now finalizing build dir...
...