fix 122 for recent xfsprogs

fix 122 for recent xfsprogs

- filter out xfs_alloctype_t, this was an internal emum that got removed
 - filter out xfs_bmbt_rec_32_t, this is a variant of the xfs_bmbt_rec_t
   that had almost no users and was removed
 - filter out xfs_dinode_core_t, the separate dinode core is gone, and just
   checking the size of the full dinode is enough
 - accept xfs_bmbt_rec_t as the new canonical name for xfs_bmbt_rec_64_t,
   and replace the old name with the new one in the output stream.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>