OPENSSL_SYS_WINDOWS is also enabled for mingw build

OPENSSL_SYS_WINDOWS is also enabled for mingw build

the test_n() in bioprinttest.c must differentiate between
MSVC runtime libc and ming runtime libc. The function
_set_printf_count_output() must be called when openssl
is linked with MSVC libc only.

Fixes #28679

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Neil Horman <nhorman@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/28759)