feat(tools/shrinkwrap): add overlay to build CCA stack with DA feature

Brings together a software stack to demonstrate Arm CCA running on FVP
in a three-world configuration with Device Assignment (DA) feature
based on RMM specification 1.1-alp12.

Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: I35ef09f2f1929557157a4b08daf65a52119dd890
2 files changed