README: update for ACS-IR 2.0 SIE part
Update the documentation to match the results of the ACS-IR v23.03_2.0.0 SIE part.
Corresponding merge request in the scripts: https://gitlab.arm.com/systemready/systemready-scripts/-/merge_requests/8
Update the documentation to match the results of the ACS-IR v23.03_2.0.0 SIE part.
Corresponding merge request in the scripts: https://gitlab.arm.com/systemready/systemready-scripts/-/merge_requests/8