Break the loop when case hits

We don't care about the number of hits of the test cases,
so break the iteration when the case hits.

Signed-off-by: Pengyu Lv <pengyu.lv@arm.com>
diff --git a/tests/scripts/analyze_outcomes.py b/tests/scripts/analyze_outcomes.py
index 4d13676..488c96b 100755
--- a/tests/scripts/analyze_outcomes.py
+++ b/tests/scripts/analyze_outcomes.py
@@ -68,6 +68,7 @@
             if suite_case in comp_outcomes["successes"] or \
                suite_case in comp_outcomes["failures"]:
                 hits += 1
+                break
 
         if hits == 0 and suite_case not in allow_list:
             if full_coverage: