[openssl/openssl] 0a8122: Update FIPS provider documentation to note that fi...

[Pauli]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: 0a81220a01e888c3ee4ab18dfdcab6472d9e214c
      https://github.com/openssl/openssl/commit/0a81220a01e888c3ee4ab18dfdcab6472d9e214c
  Author: Pauli <pauli at openssl.org>
  Date:   2023-03-01 (Wed, 01 Mar 2023)

  Changed paths:
    M doc/man7/OSSL_PROVIDER-FIPS.pod

  Log Message:
  -----------
  Update FIPS provider documentation to note that fips=yes is mandatory

This was in the notes section but an earlier comment about it not being
mandatory was missed.

Fixes #20376

Reviewed-by: Matt Caswell <matt at openssl.org>
Reviewed-by: Shane Lontis <shane.lontis at oracle.com>
(Merged from https://github.com/openssl/openssl/pull/20382)