overlay: wifi: Enable 802.11r FT roaming.

Issue: FP3-A11#233
Change-Id: I10fc0fdf8b6f45b0b5d50712549da45840560ce1
(cherry picked from commit 0233ae5696fd3f553d7545c8e1d0996c959aead0)
diff --git a/rro_overlays/WifiOverlay/res/values/config.xml b/rro_overlays/WifiOverlay/res/values/config.xml
index 52a70b6..cac31e5 100644
--- a/rro_overlays/WifiOverlay/res/values/config.xml
+++ b/rro_overlays/WifiOverlay/res/values/config.xml
@@ -44,6 +44,9 @@
          capability can provide power savings when wifi needs to be always kept on. -->
     <bool translatable="false" name="config_wifi_background_scan_support">true</bool>
 
+    <!-- Boolean indicating whether 802.11r Fast BSS Transition is enabled on this platform -->
+    <bool translatable="false" name="config_wifi_fast_bss_transition_enabled">true</bool>
+
     <!-- Indicates that connected MAC randomization is supported on this device -->
     <bool translatable="false" name="config_wifi_connected_mac_randomization_supported">true</bool>