Build: Do not generate NSPE CMake commands for NSOFF configs

When TF-M config disables NS applications, NSPE CMake commands should
not be generated and run in CI job.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: I35b2394c4cce1245d30bcdb7c03c6afd289f648e
2 files changed