timing fix. The line address in the buffers still updates now even if there is an...

timing fix.  The line address in the buffers still updates now even if there is an error.  Doesn't matter, since the error means the buffer is useless anyway.  This makes meeting timing much easier since the address update does not depend on the error signal which comes late.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10524 221aa14e-8319-0410-a670-987f0aec2ac5