Fix an off-by-one error in ssl-opt.sh

Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 654de32..ced863a 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -1082,7 +1082,8 @@
 
     analyze_test_commands "$@"
 
-    TIMES_LEFT=2
+    # One regular run and two retries
+    TIMES_LEFT=3
     while [ $TIMES_LEFT -gt 0 ]; do
         TIMES_LEFT=$(( $TIMES_LEFT - 1 ))