fix: specify FVP start ports explicitly

This change ensures that every supported FVP is explicit about the ports
that it will try to bind to. This is a mitigation against the
sometimes-random order in which terminals are enumerated by the various
FVPs, which causes our LAVA tests to attempt to read from the wrong
terminal.

Signed-off-by: Chris Kay <chris.kay@arm.com>
Change-Id: Ida12fcdae988fe119226c05032c90387e574727b
(cherry picked from commit 30120b38df617c05307ee42f46bc6f5db5d7f568)
diff --git a/model/cortex-a53x4.sh b/model/cortex-a53x4.sh
index 0bd8403..7d38d96 100644
--- a/model/cortex-a53x4.sh
+++ b/model/cortex-a53x4.sh
@@ -10,6 +10,10 @@
 source "$ci_root/model/fvp_common.sh"
 
 cat <<EOF >>"$model_param_file"
+-C bp.terminal_0.start_port=5000
+-C bp.terminal_1.start_port=5001
+-C bp.terminal_2.start_port=5002
+-C bp.terminal_3.start_port=5003
 
 ${reset_to_spmin+-C cluster0.cpu0.RVBARADDR=${bl32_addr:?}}
 ${reset_to_spmin+-C cluster0.cpu1.RVBARADDR=${bl32_addr:?}}