morello: Reintroduce tf-l3 and scp boot tests

Commit 973e6636b893ebb14c9ef9323fe45e942ec09796 disabled
Platform CI tests for Morello because of a major change
in the boot flow.

Update Morello run/build/model scripts to adhere to the
newly introduced TBBR based boot flow, and re-enable the
boot tests.

Signed-off-by: Anurag Koul <anurag.koul@arm.com>
Change-Id: Ib4646e48395e2a6293e4f8bbcf4b85c1b85e7000
diff --git a/morello_utils.sh b/morello_utils.sh
index c592917..10bfda0 100644
--- a/morello_utils.sh
+++ b/morello_utils.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 #
-# Copyright (c) 2021 Arm Limited. All rights reserved.
+# Copyright (c) 2021-2022 Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -8,6 +8,7 @@
 source "$ci_root/fvp_utils.sh"
 
 morello_prebuilts=${morello_prebuilts:="$tfa_downloads/morello"}
-scp_mcp_prebuilts=${scp_mcp_prebuilts:="$scp_mcp_downloads/morello/release"}
 
-uefi_addr=0x14200000
+# TODO: Restore this path once the SCP release v2.10 binaries are generated
+#scp_mcp_prebuilts=${scp_mcp_prebuilts:="$scp_mcp_downloads/morello/release"}
+scp_mcp_prebuilts=${scp_mcp_prebuilts:="$tfa_downloads/morello/"}