xfs: fix use-after-free when aborting corrupt attr inactivation

Log the corrupt buffer before we release the buffer.

Fixes: a5155b87 ("xfs: always log corruption errors")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>