ci(sme): add build and run configs for SME2

This patch adds the following:
1. TF-A build config with SME2 support.
2. Run configuration to generate model parameters for FEAT_SME2.
3. CI test configuration to verify SME2 support.

Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Change-Id: Ibd80e7ee0e8657048c052cc93cc5bb7376c55f47
4 files changed