ci(cm): add test config to verify EL2 context switch via SPM

As a prerequisite to the test config, this patch adds a few
missing FVP configuration switches and a new group.
The test config itself consists of new TF-A, TFTF and run
configurations and an existing default SPM configuration.

Change-Id: I6a1c77fbd4b1e0a501708c5e9169d770b17118d6
Signed-off-by: Igor Podgainõi <igor.podgainoi@arm.com>
4 files changed