[Doc] correct datasheets to use predefined text about third party components

The section about third party components shall do not contain table anymore, but include predefined text pointing to the FOSS disclosure file. See recent PNSv5 for example:

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Third Party Components
This firmware may include third-party components as well as free and open-source software (FOSS).
To ensure transparency regarding the software components included in the firmware, a Software Bill of Materials (SBOM)
file is provided for each firmware variant. The SBOM file, named <target name>.sbom.json, is supplied alongside the
corresponding firmware file.
For each firmware variant, a list of third-party and FOSS components is included. This list contains the component name,
copyright details, license information, and the license text. The file, named <target name> COPYING.txt, is also provided
with the corresponding firmware file.