2077 lots of unreachable breaks in illumos gate
Reviewed by: Dan McDonald <danmcd@nexenta.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Richard Lowe <richlowe@richlowe.net>

6665460 move random and nonzero random funcs out of pkcs11 to libcryptoutil
6665548 convert pkcs11 mechanism to corresponding key generation mechanism