[SCM] libav/master: Also make libav-regular-dbg 'arch: all' for consistency with the other debug packages.

[Fabian Greffrath]

> I'd like to keep libav-extra-dbg, as it is not transitional in ubuntu.
> However, I think I'll just drop libav-extra-dbg.

oh, i didnt know. however, i think appropriate replaces and provides are
already set in libav-dbg for those few who happened to have this package
installed.

> Oh, have a great time there! :-)

thanks, but ill have to get over my first sunburn since years.