libcrypto: Switch back to the generated assembly in sys/crypto/openssl
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D41569
(cherry picked from commit 47d997021fbc7b662e9507deec1897d514d1224c)
(cherry picked from commit bf5069fb6a3fc8fbf08ed23a4fd958af48cf902f)
Approved by: re (gjb)