fix(build): run sp_mk_gen.py with poetry

If Poetry is available in the build environment, use Poetry when
running sp_mk_gen.py script. This ensures dependencies that are needed
to run the script are accounted for.

Needed to successfully run the following config:
spm-l2-boot-tests/fvp-default,fvp-spm-optee-sp,fvp-default: \
fvp-spm.optee.sp

Change-Id: Icca4249dab929f1bcf5f4454d472cf6923e3ee17
Signed-off-by: Kathleen Capella <kathleen.capella@arm.com>
1 file changed