Lexicographically sort perms in rules output of searchpolicy.py

Bug: 238394904
Test: atest seamendc-test && atest CtsSecurityHostTestCases
Change-Id: I841e7d5cf3616d692dcd5b749544268bcbab76c2
diff --git a/tests/searchpolicy.py b/tests/searchpolicy.py
index 9d2c636..79efecf 100644
--- a/tests/searchpolicy.py
+++ b/tests/searchpolicy.py
@@ -78,10 +78,10 @@
 for r in TERules:
     if len(r.perms) > 1:
         rules.append("allow " + r.sctx + " " + r.tctx + ":" + r.tclass + " { " +
-                " ".join(r.perms) + " };")
+                " ".join(sorted(r.perms)) + " };")
     else:
         rules.append("allow " + r.sctx + " " + r.tctx + ":" + r.tclass + " " +
-                " ".join(r.perms) + ";")
+                " ".join(sorted(r.perms)) + ";")
 
 for r in sorted(rules):
     print(r)