[WifiSoftApAcsTest] Increase the number of SSIDs on the same channel

Bug: 144508280
Test: Verified the changes
Change-Id: Ia33b1a28c4090eac993cbdf68cf4e936ad296654
diff --git a/acts/tests/google/wifi/WifiSoftApAcsTest.py b/acts/tests/google/wifi/WifiSoftApAcsTest.py
index 0bf47a9..c130098 100644
--- a/acts/tests/google/wifi/WifiSoftApAcsTest.py
+++ b/acts/tests/google/wifi/WifiSoftApAcsTest.py
@@ -167,12 +167,13 @@
         """
         if "AccessPoint" in self.user_params:
             if not channel_2g:
-                self.legacy_configure_ap_and_start(channel_5g=channel_5g)
-            elif not channel_5g:
-                self.legacy_configure_ap_and_start(channel_2g=channel_2g)
-            else:
-                self.legacy_configure_ap_and_start(channel_2g=channel_2g,
-                    channel_5g=chanel_5g)
+                channel_2g = hostapd_constants.AP_DEFAULT_CHANNEL_2G
+            if not channel_5g:
+                channel_5g = hostapd_constants.AP_DEFAULT_CHANNEL_5G
+            self.legacy_configure_ap_and_start(wpa_network=True,
+                                               wep_network=True,
+                                               channel_2g=channel_2g,
+                                               channel_5g=channel_5g)
 
     def start_traffic_and_softap(self, network, softap_band):
         """Start iPerf traffic on client dut, during softAP bring-up on dut.