apps: silent warning when loading CSR files with vfyopt option

apps: silent warning when loading CSR files with vfyopt option

When verifying or signing a CSR file with the -vfyopt option,
a warning message similar to the following will appear:

  Warning: CSR self-signature does not match the contents

This happens especially when the SM2 algorithm is used and the
distid parameter is added. Pass the vfyopts parameter to the
do_X509_REQ_verify() function to eliminate the warning message.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20799)