Enable adjusting link layer stats polling interval

Enable the feature of adjusting link layer stats polling interval in Pixels.

Bug: 237530606
Test: manual
Change-Id: Ifb10f95d08e6e0b7223b9a1214b576b5a331a341

rro_overlays/WifiOverlay/res/values/config.xml

@@ -146,4 +146,8 @@
          no telephony country code and driver country code is 00.
          This is applied only during the setup wizard -->
     <bool translatable="false" name ="config_wifiUpdateCountryCodeFromScanResultSetupWizard">true</bool>
+
+    <!-- Enable the feature of adjusting link layer stats polling interval based on
+    device mobility state and client mode RSSI monitoring. -->
+    <bool translatable="false" name="config_wifiAdjustPollRssiIntervalEnabled">true</bool>
 </resources>