Add tf-m-split-build job

To support TF-M split build feature, enable per-patch tests for TF-M
feature-build-split-v2 branch.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: I4d2b5fcd86f8bd2da916866ce783e1d9c8c2a45b
1 file changed