[Tests]Fix for roaming and acs tests.

Bug: 79534733
Test: Tested locally
Change-Id: I5e17c5a305b9b4de319254683cd9a06b3bfe113a
diff --git a/acts/tests/google/wifi/WifiStressTest.py b/acts/tests/google/wifi/WifiStressTest.py
index 160135e..17d6c75 100755
--- a/acts/tests/google/wifi/WifiStressTest.py
+++ b/acts/tests/google/wifi/WifiStressTest.py
@@ -58,7 +58,7 @@
             req_param_names=req_params, opt_param_names=opt_param)
 
         if "AccessPoint" in self.user_params:
-            self.legacy_configure_ap_and_start()
+            self.legacy_configure_ap_and_start(ap_count=2)
 
         asserts.assert_true(
             len(self.reference_networks) > 0,