Fix statically linked engine initialization w/ fips

This only manifested itself with FIPS enabled statically linked
engines. The OPENSSL_init call ended up invoking RAND_init_fips
for a FIPS enabled build, which called CRYPTO_malloc, resulting in
disallowing the engine to finish its IMPLEMENT_DYNAMIC_BIND_FN call.

(Merged from https://github.com/openssl/openssl/pull/1308)Reviewed-by

: Geoff Thorpe <geoff@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
CLA: trivial
(Merged from https://github.com/openssl/openssl/pull/1308)