AmdSmiPlugin: AmdSmiTstData, XgmiMetrics + Cper

[alexandraBara]

Enhanced amdsmi plugin with:

• AmdSmiTstData
• XgmiMetrics
• Cper

• bug fix for global analysis_args overwritting all of plugin analysis_args. New behavior is now: global args only overwritting args specified in both global & plugin, otherwise the args are merged from both global & plugin.
  Test with plugin_config.json:

{
    "name": "TestConfigWithTimeRangeArgs",
    "desc": "Test configuration with new analysis_range_start, analysis_range_end, and check_unknown_dmesg_errors analyzer args populated",
    "global_args": {
        "analysis_args": {
            "analysis_range_start": "2025-12-01T00:00:00",
            "analysis_range_end": "2025-12-02T23:59:59",
            "check_unknown_dmesg_errors": true
        }
    },
    "plugins": {
        "AmdSmiPlugin": {
            "analysis_args": {
                "analysis_range_start": "2025-12-01T08:00:00",
                "analysis_range_end": "2025-12-01T20:00:00",
                "check_static_data": true,
                "expected_gpu_processes": 1,
                "expected_driver_version": "x.x"
            }
        }
    },
    "result_collators": {}
}