da2593e6b0
Add ext4l_rename() to rename files and directories, including moves across directories. This uses the Linux ext4_rename() function. Also fix the symlink test to verify reading through symlinks works correctly, since ext4l_resolve_path follows symlinks (stat behavior). Add Python test wrappers for mkdir, ln, and rename tests. Co-developed-by: Claude <noreply@anthropic.com> Signed-off-by: Simon Glass <simon.glass@canonical.com>