refactor: refactor RTL style checker and update test cases

- Enhanced the RTL style checker script to include new diagnostic rules for function declarations, primary design units, and synthesis exclusions.
- Added functions to handle audit issues, ensuring that the audit records match the current inventory of RTL files.
- Updated test cases to reflect changes in RTL file names and paths, ensuring consistency with the new naming conventions.
- Introduced additional tests for style violations, including mismatched primary design units and synthesizable initial blocks.
- Adjusted file paths in various test files to align with the new RTL structure and naming conventions.

tests/test_dma.py

@@ -44,7 +44,7 @@ def test_dma_reports_bus_errors_and_transfers_exact_word_count(tmp_path: Path) -
                 str(ROOT / "rtl/mini/top/rib_if.sv"),
                 str(ROOT / "rtl/managed/clusterip/common/rtl/utils/register.sv"),
                 str(ROOT / "rtl/managed/clusterip/common/rtl/utils/fifo.sv"),
-                str(ROOT / "rtl/ip/peripheral/dma.sv"),
+                str(ROOT / "rtl/ip/peripheral/ribp_dma.sv"),
                 str(ROOT / "rtl/ip/peripheral/dma_core.sv"),
                 str(ROOT / "tests/rtl/dma_error_tb.sv"),
                 "",