ci(n1sdp): provide SPD and SPMD_SPM_AT_SEL2 flags

N1SDP supports OPTEE, this changes is to provide required flags
such as SPD="spmd" SPMD_SPM_AT_SEL2=0 to TF-A build system

Signed-off-by: Vishnu Banavath <vishnu.banavath@arm.com>
Change-Id: Idc33155ad0f71a644562ac0abcb487dde52059ef
2 files changed