Rickard Bolin authored Feb 19, 2025 and Tim Hall committed Feb 27, 2025

 - Simplified README file and moved information to other docs
 - Created new BUILD.md to explain the manual build options

Change-Id: I1c834257056e9cc1f11c8257316332e3c6c88379
Signed-off-by: Rickard Bolin <rickard.bolin@arm.com>