wolfssl: enable openssl 1.0.1 compatibility

>From wolfssl/openssl/opensslv.h, and from skimming the contents of what
"--enable-stunnel" actually does, it seems that --enable-opensslextra
doesn't give you the "full" openssl compatibility that you may wish for
these days.  Unfortuantely, while wolfssl writes the build time options
into wolfssl/options.h, it doesn't include that file itself.  User
applications must include that directly.

Signed-off-by: Karl Palsson <karlp@etactica.com>