PROV: Fix encoding of MDWithRSAEncryption signature AlgorithmID
PROV: Fix encoding of MDWithRSAEncryption signature AlgorithmID

All {MD}WithRSAEncryption signature AlgorithmID have the parameters
being NULL, according to PKCS#1.  We didn't.  Now corrected.

This bug was the topic of this thread on openssl-users@openssl.org:
https://mta.openssl.org/pipermail/openssl-users/2021-January/013416.html

Reviewed-by: Tomas Mraz <2bc6038c3dfca09b2da23c8b6da8ba884dc2dcc2@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14030)

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl