Update the mention of the "currently integrated" version of TFM to match
the latest upgrade.
Signed-off-by: Markus Swarowsky <markus.swarowsky@nordicsemi.no>
- Updated TFM v1.4 to v1.8
- Delete the TFM "Audit log" service, as it was removed from TFM.
- Delete not used secure service abbreviations.
Signed-off-by: Andrej Butok <andrey.butok@nxp.com>