n1sdp: Add support for n1sdp in ci

Build scp and tf-a and test the artefacts on n1sdp in LAVA.

Change-Id: Iabe1bc65c5eb18f3204ec732fa259e7e6a4351bc
Signed-off-by: Khasim Syed Mohammed <khasim.mohammed@arm.com>
10 files changed