tools: update certdata.txt

This is the certdata.txt[0] that ships in NSS 3.30.2, released on
2017-04-20.

[0] https://hg.mozilla.org/projects/nss/raw-file/NSS_3_30_2_RTM/lib/ckfw/builtins/certdata.txt

PR-URL: nodejs#13279
Reviewed-By: Sam Roberts <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: bnoordhuis