REGRESSION: CMS_final: do not ignore CMS_dataFinal result

The CMS_dataFinal result is important as signature may fail, however, it
is ignored while returning success from CMS_final.

The SMIME_crlf_copy result is returned while it is ignored in the rest
of the openssl code.

Prefer the CMS_dataFinal result.

This is regression from openssl-1.

Blame finds c1669f41ei as root cause of regression.

Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18876)

(cherry picked from commit b0375613)