feat(n1sdp): enable trusted board boot on n1sdp

Move from RESET_TO_BL31 boot to a TBBR style boot on N1sdp.

Signed-off-by: sahil <sahil@arm.com>
Change-Id: I153ccb43a4a013830973c7a183825d62b372c65e
diff --git a/plat/arm/board/n1sdp/n1sdp_bl1_setup.c b/plat/arm/board/n1sdp/n1sdp_bl1_setup.c
new file mode 100644
index 0000000..ed93222
--- /dev/null
+++ b/plat/arm/board/n1sdp/n1sdp_bl1_setup.c
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2022, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <plat/arm/common/plat_arm.h>
+
+/*******************************************************************************
+ * Perform any BL1 specific platform actions.
+ ******************************************************************************/
+
+void soc_css_init_nic400(void)
+{
+}
+
+void soc_css_init_pcie(void)
+{
+}