[TRTLLM-5786][https://nvbugspro.nvidia.com/bug/5310520][test] Add QA test cases

[crazydemo]

Description

This PR adjusts several test cases:

1. add rcca case for 5310520, covers TestKanana_Instruct::test_auto_dtype
2. add model tests required by TRTLLM-5786, covers

accuracy/test_llm_api_pytorch.py::TestLlama3_2_3B::test_auto_dtype
accuracy/test_llm_api_pytorch.py::TestLlama3_2_3B::test_fp8_prequantized
accuracy/test_llm_api_pytorch.py::TestLlama3_2_1B::test_fp8_prequantized

3. add nemotron-H-fp8 model accuracy test: test_llm_api_pytorch.py::TestNemotronH::test_reasoning_fp8_prequantized
4. move Llama3_2_1B accuracy test cases from test_llm_api_pytorch.py to test_llm_api.py, as they should be aimed at testing with trt flow.

Test Coverage

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