[vector] Address latest CSR review comments

[Paul Sandoz]

Hi,

Please review the following small changes to the specification that address the latest CSR review comments:

  http://cr.openjdk.java.net/~psandoz/panama/vector-csr-round-2-review/webrev/ <http://cr.openjdk.java.net/~psandoz/panama/vector-csr-round-2-review/webrev/>

Thanks,
Paul.