Debbie Horsfall authored Apr 11, 2025 and Ziad Elhanafy committed Jun 09, 2025

Add support for Arm SystemReady Devicetree ACS on RD-Aspen.

Update the README. Although RD-1 AE still uses the IR band,
the link redirects to Devicetree so replace the link.

Signed-off-by: Debbie Horsfall <debbie.horsfall@arm.com>