Fixed bug in SOUN Record

Updated flags definition
Updated SNDD and SNDX to have proper default values to eliminate the
error:

cannot convert argument to integer
<bash.bosh.ModWriter instance at 0x062A7788> SNDD =2BbsIh2B6h3i (None,
None, None, '\x00', 0L, None, None, None, 0, 0, 0, 0, 0, 0, 0, 0, 0)