chiron: Change default wifi ssid to "Mi MIX 2"

Remove Xiaomi prefix to match the model which
is also used as device name and for bluetooth.

Change-Id: I2f839a97768cf0ef676761172fc1957a86a69d19

overlay/packages/modules/Wifi/service/ServiceWifiResources/res/values/config.xml

@@ -26,7 +26,7 @@
     <!-- Configure wifi tcp buffersizes in the form: rmem_min,rmem_def,rmem_max,wmem_min,wmem_def,wmem_max -->
     <string name="config_wifi_tcp_buffers" translatable="false">524288,2097152,8388608,262144,524288,4194304</string>
     <!-- Default access point SSID used for tethering -->
-    <string name="wifi_tether_configure_ssid_default" translatable="false">Xiaomi Mi MIX 2</string>
+    <string name="wifi_tether_configure_ssid_default" translatable="false">Mi MIX 2</string>
     <!-- Enable WPA2 to WPA3 auto-upgrade -->
     <bool translatable="false" name="config_wifiSaeUpgradeEnabled">false</bool>
 </resources>