cdiocddasrc: detect whether drive produces samples in non-host endianness

cdiocddasrc: detect whether drive produces samples in non-host endianness

If drive produces samples in other endianness than the host,
we need to byte swap them before pushing them out, or we
produce nothing but noise. cdparanoia detects this automatically,
but libcdio does not, so we have to do it ourselves.

This is needed on e.g. the PowerBook G4 with Matshita UJ-816 drive.

https://bugzilla.gnome.org/show_bug.cgi?id=377280