Fix DRBG reseed counter condition.

Fix DRBG reseed counter condition.

The reseed counter condition was broken since a93ba40, where the
initial value was wrongly changed from one to zero.
Commit 8bf3665 fixed the initialization, but also adjusted the check,
so the problem remained.
This change restores original (OpenSSL-fips-2_0-stable) behavior.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/11195)