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Description of problem:
When system is configured to work in FIPS mode, the ECDSA operations with explicit parameters don't work. This is in contrast to RHEL-8

Version-Release number of selected component (if applicable):
openssl-3.0.1-13.el9

How reproducible:
always

Steps to Reproduce:
1. set up FIPS mode
2. openssl ecparam -out ecparams.pem -param_enc explicit -name P-256
3. openssl ecparam -in ecparams.pem -check

Actual results:
Could not read params of EC parameters from ecparams.pem
80CB0D2AEB7F0000:error:1608010C:STORE routines:ossl_store_handle_load_result:unsupported:crypto/store/store_result.c:151:

Expected results:
passed, same for key generation, signature creation, and signature verification

Additional info:

Upstream has forbidden the explicit FIPS parameters in FIPS mode. See https://github.com/openssl/openssl/pull/17998

We've decided to follow upstream in this behaviour, as such explicit curve parameters will no longer work in FIPS mode.
Explicit curve parameters will be supported in non-FIPS mode, see bug 2066412.

RHEL 9.1 contains openssl-3.0.1-43.el9_0.