feat(debugv8p9): add support for parameter has_v8_9_debug_extension

This patch adds support to enable Debugv8p9 feature
in model.

Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: Ia65a1d13e186037a39f42592607354841ba7026b
diff --git a/run_config/fvp-aemv8a.all b/run_config/fvp-aemv8a.all
index fed51a7..ab693f6 100644
--- a/run_config/fvp-aemv8a.all
+++ b/run_config/fvp-aemv8a.all
@@ -20,6 +20,7 @@
 		has_sme="1" has_sme2="1" \
 		has_mpam="1" \
 		has_ecv="1" \
+		has_v8_9_debug_extension="1" \
 		memory_tagging_support_level="3" \
 		supports_branch_record_buffer_control_regs="1" \
 		supports_trace_buffer_control_regs="1" \