Unbreak detection of cryptodev support for FreeBSD which was broken
with OpenSSL 0.9.8 import.

Note that this does not enable cryptodev by default, as it was the
case with OpenSSL 0.9.7 in FreeBSD base, but this change makes it
possible to enable cryptodev at all.

This has been submitted upstream as:
http://rt.openssl.org/Ticket/Display.html?id=1624

Submitted by: nork