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
diff --git a/group/tf-l1-build-plat/n1sdp-tbb-optee-spmc:nil b/group/tf-l1-build-plat/n1sdp-tbb-optee-spmc:nil
new file mode 100644
index 0000000..b8939c8
--- /dev/null
+++ b/group/tf-l1-build-plat/n1sdp-tbb-optee-spmc:nil
@@ -0,0 +1,5 @@
+#
+# Copyright (c) 2022, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
diff --git a/tf_config/n1sdp-tbb-optee-spmc b/tf_config/n1sdp-tbb-optee-spmc
new file mode 100644
index 0000000..d774c4a
--- /dev/null
+++ b/tf_config/n1sdp-tbb-optee-spmc
@@ -0,0 +1,9 @@
+ARM_ROTPK_LOCATION=devel_rsa
+CREATE_KEYS=1
+CROSS_COMPILE=aarch64-none-elf-
+GENERATE_COT=1
+PLAT=n1sdp
+ROT_KEY=plat/arm/board/common/rotpk/arm_rotprivk_rsa.pem
+SPD=spmd
+SPMD_SPM_AT_SEL2=0
+TRUSTED_BOARD_BOOT=1