hal: realtek: add REUSE.toml and LICENSES/
Add REUSE Specification 3.3 (https://reuse.software/spec-3.3/)
compliance infrastructure so west-fetched binary blobs have
machine-readable license information that can be accurately
reflected in an SBOM (Software Bill of Materials).
Binary blobs cannot carry in-file SPDX tags. Previously their
license was described only via license-path in zephyr/module.yml
(LICENSE, Apache-2.0), causing SBOM generators such as
‘west spdx’ to report NOASSERTION for those files.
Changes:

Add REUSE.toml with a path-glob annotation mapping
zephyr/blobs/** to Apache-2.0, per REUSE spec §3.3.
Add LICENSES/ directory with a canonical full-text copy of:

Apache-2.0.txt



No source files are modified; upstream Realtek content is
unchanged.
Assisted-by: Cursor:grok-4.6
Signed-off-by: Benjamin Cabé benjamin@zephyrproject.org