Use the correct function name

CLA: trivial

Signed-off-by: Jakub Jelen <jjelen@redhat.com>

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7887)

(cherry picked from commit 829800b0)