[add] 添加忽略 RASC 生成的目录文件

bsp/ra6m4-cpk/.ignore_format.yml

+# files format check exclude path, please follow the instructions below to modify;
+# If you need to exclude an entire folder, add the folder path in dir_path;
+# If you need to exclude a file, add the path to the file in file_path.
+
+dir_path:
+- ra
+- ra_gen
+- ra_cfg

bsp/ra6m4-cpk/ra_cfg/.gitignore

-/bsp/*.h
\ No newline at end of file