Move PQDSA to FIPSMODULE

[jakemas]

Issues:

Resolves #CryptoAlg-2898

As part of validating ML-DSA into AWS-LC-FIPS we must include both PQDSA and ML-DSA directories into the fipsmodule.

Much like the series of PRs for ML-KEM we will implement this across split PRs:

• Move KEM API and ML-KEM definitions to FIPS module #1828
• Retire out-of-module KEM folder #1832
• Move EVP KEM implementation to in-module and correct OID #1838

This PR is part (1) move PQDSA, part (2) will be to move ML-DSA from crypto/ml_dsa/ to crypto/fipsmodule/ml_dsa/.

We did this once before:

• Move PQDSA to FIPS module #2032
• Move ML-DSA to FIPSMODULE #2095

But had to revert it here due to static fips builds for ARM failing in CI (CryptoAlg-2899):

• Move mldsa and pqdsa out of fipsmodule #2104

We are now unblocked by:

• Wrap pointers to s2n-bignum functions - delocator fix #2165

Next up will be a repeat of:

• Move ML-DSA to FIPSMODULE #2095

Description of changes:

• Move pqdsa and ml_dsa directories to fipsmodule
• Move compilation of ML-DSA to bcm.c
• Update EVP_PKEY_METHOD related structures

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license and the ISC license.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.99%. Comparing base (2c6ff65) to head (aa48e68).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2166      +/-   ##
==========================================
+ Coverage   78.97%   78.99%   +0.02%     
==========================================
  Files         611      611              
  Lines      105816   105904      +88     
  Branches    14976    14983       +7     
==========================================
+ Hits        83563    83658      +95     
+ Misses      21600    21593       -7     
  Partials      653      653              

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[jakemas]

This is a repeat of #2032 reviewed by @andrewhop and @torben-hansen previously.