RSE: Enable BL1_1 tests

Also, add generic support for runnning the BL1_1 and BL1_2 testsuites in
CI.

Change-Id: I85f0cf0018e0f025cf16d8484c944167191efc4f
Signed-off-by: Raef Coles <raef.coles@arm.com>
3 files changed