Improve type safety and bounds checking in EVP cipher ctrl handlers

[justsmth]

Description of changes:

Fixes minor correctness and safety issues in the AES-GCM and AES-CCM EVP cipher ctrl handlers:

• e_aes.c (EVP_CTRL_GCM_SET_IV_INV): Added bounds validation for arg (arg <= 0 || arg > gctx->ivlen). The companion handler EVP_CTRL_GCM_IV_GEN already validates arg before the same gctx->iv + gctx->ivlen - arg pointer arithmetic, but SET_IV_INV did not, allowing potential out-of-bounds access from a misuse of the API.
• e_aesccm.c
  • EVP_CTRL_GET_IVLEN: The handler wrote through a uint32_t * cast, but the caller in EVP_CIPHER_CTX_iv_length passes an int *. This is a strict aliasing violation. Changed to *(int *)ptr to match the caller and the GCM handler's convention.
  • CCM_L_TO_NONCE_LEN macro: Added parentheses around the macro parameter to follow standard C macro hygiene.

Call-outs:

The uint32_t * vs int * mismatch is undefined behavior under C strict aliasing rules, though it is unlikely to cause issues in practice since both types are 32 bits on almost all platforms. The other two changes are defensive hardening.

Testing:

Existing tests cover these code paths. No behavioral change is expected for valid inputs.

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

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 78.37%. Comparing base (e2b4850) to head (984c634).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
crypto/fipsmodule/cipher/e_aes.c	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3034      +/-   ##
==========================================
- Coverage   78.37%   78.37%   -0.01%     
==========================================
  Files         689      689              
  Lines      121148   121150       +2     
  Branches    16973    16973              
==========================================
- Hits        94948    94946       -2     
- Misses      25302    25308       +6     
+ Partials      898      896       -2     

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