[VTS] Use primary channel to enable RTT responder

Bug: 160109667
Test: atest VtsHalWifiRttV1_4TargetTest
Change-Id: I9bbe5cdaf9656503acb87e2888856e0f199dc45f
diff --git a/wifi/1.4/vts/functional/wifi_rtt_controller_hidl_test.cpp b/wifi/1.4/vts/functional/wifi_rtt_controller_hidl_test.cpp
index 9d84223..a099c8a 100644
--- a/wifi/1.4/vts/functional/wifi_rtt_controller_hidl_test.cpp
+++ b/wifi/1.4/vts/functional/wifi_rtt_controller_hidl_test.cpp
@@ -225,8 +225,8 @@
     int cmdId = 55;
     WifiChannelInfo channelInfo;
     channelInfo.width = WifiChannelWidthInMhz::WIDTH_80;
-    channelInfo.centerFreq = 5690;
-    channelInfo.centerFreq0 = 5690;
+    channelInfo.centerFreq = 5660;
+    channelInfo.centerFreq0 = 5660;
     channelInfo.centerFreq1 = 0;
 
     // Get the responder first