crypto: use CHECK_NE instead of ABORT or abort

Use of abort() was added in 34febfbf, and changed to ABORT()
in 21826ef2, but conditional+ABORT() is better expressesed
using a CHECK_xxx() macro.

See: https://github.com/nodejs/node/pull/9409#discussion_r93575328

PR-URL: https://github.com/nodejs/node/pull/10413


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>