libcrypto: fix the FIPS provider on amd64

[khorben]

Summary

This corrects the list of source files required for the FIPS provider,
as tested on a amd64 host. This still requires testing on the other
architectures.

Test Plan

# openssl fipsinstall -out /etc/ssl/fipsmodule.cnf -module /usr/lib/ossl-modules/fips.so
# vi /etc/ssl/openssl.cnf
[enable the FIPS module]
# echo test | openssl aes-256-cbc -provider fips -a -pbkdf2
enter AES-256-CBC encryption password:
Verifying - enter AES-256-CBC encryption password:
U2FsdGVkX199k8PlM+6jTPK4AARYYVR3BXF+a1bCLCk=

[khorben]

Submitted again after rebase on -CURRENT.