feat: refactor NMI to RIB Interface and Update Related Tests

- Replaced instances of nmi_if with rib_if in sysctrl_fault_tb.sv, test_dma.py, test_gpio_user_mux.py, test_memory_map.py, test_performance_log.py, test_script_tools.py, test_sdram.py, test_soc_topology.py, test_sta_constraints.py, and test_user_extensions.py.
- Updated test cases to reflect changes from NMI to RIB, ensuring all references and assertions are consistent with the new interface.
- Adjusted memory map and performance log tests to validate RIB-specific configurations and behaviors.
- Ensured that all relevant file paths and definitions are updated to maintain functionality and correctness across the test suite.

tests/test_user_extensions.py

@@ -48,8 +48,8 @@ def test_extensions_generate_isolated_scalar_bindings(tmp_path: Path) -> None:
     ip = (tmp_path / "rtl/user_ip_bindings.svh").read_text(encoding="utf-8")
     filelist = (tmp_path / "user_extensions.fl").read_text(encoding="utf-8")
 
-    assert core.count("nmi_if u_user_") == 6
-    assert "nmi.valid = '0;" in core
+    assert core.count("rib_if u_user_") == 6
+    assert "rib.valid = '0;" in core
     assert "5'd0: begin" in core
     assert "5'd5: begin" in core
     assert "core_reset_i[0]" in core