Switch ML-DSA to use AWS-LC SHA3

[jakemas]

Issues:

Resolves #CryptoAlg-2726

Description of changes:

Following the inclusion of SHAKE as an extensible-output-function (XOF) in #1839, we are now able to fully support ML-DSA with SHA3/SHAKE usage within crypto/fipsmodule. As such, all references to the internal implementation of SHA3 (within crypto/kyber/pqcrystals_dilithium_ref_common/fips202.{h|c}) have been removed.

Call-outs:

• The structure keccak_state provided by the Kyber reference implementation has been replaced with KECCAK1600_CTX
• The calls to absorb/update/final have been replaced with a straight swap to AWS-LC's implementation
• The dilithium specific function dilithium_shake128_stream_init, dilithium_shake128_squeeze, dilithium_shake256_stream_init, dilithium_shake256_squeeze of fips202.c has been replaced with versions that call SHA3 from fipsmodule.

Testing:

The testing framework is the KATs for ML-DSA, and all other ML-DSA tests completed.

#CryptoAlg-2589 design documentation provides an analysis of all fips202.c usage from ML-DSA, to verify that all functionality that used to be provided by fips202.c has been replaced by this commit, the file has been removed from the library.

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 78.75%. Comparing base (39520e5) to head (b7408c2).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1957      +/-   ##
==========================================
+ Coverage   78.73%   78.75%   +0.01%     
==========================================
  Files         590      590              
  Lines      101406   101406              
  Branches    14380    14380              
==========================================
+ Hits        79846    79862      +16     
+ Misses      20920    20905      -15     
+ Partials      640      639       -1     

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[jakemas]

I'm going to have to re-base as upstream changes heavily modified sign.c in #1977