spm: include missing spm test groups into tf-main and tf-l1 and l2

The test groups, spm-l1-build-tests, spm-l2-boot-tests and
spm-l3-boot-tests were missing in tf-main and tf-[l1|l2] jobs, so
include them.

Signed-off-by: Leonardo Sandoval <leonardo.sandoval@linaro.org>
Change-Id: Ic78bd55b6c5beba4b57def4d91edadf46cd03c9e
3 files changed