Exclude child provider code from the FIPS module
Exclude child provider code from the FIPS module

We don't need the child provider code in the FIPS module so we exclude
it.

Reviewed-by: Paul Dale <ddec78389666b4f7c9b4d110380c848489a3e4aa@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14991)

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl