Enable VoLTE for Xiaomi Mi 10T Lite (gauguin)

Steps to enable:

1. Settings -> Phh Treble Settings -> IMS features
2. Click "Instal IMS APK for Qualcomm vendor" and install it
3. Request IMS network ✅
4. Force the presence of 4G Calling setting ✅

Xiaomi/Mi10TLite/res/values/config.xml

@@ -287,4 +287,11 @@
     <dimen name="rounded_corner_radius">90px</dimen>
     <string name="config_mainBuiltInDisplayCutout">M 30,58 a30,30 0 1,1 0,-1 Z</string>
     <string name="config_mainBuiltInDisplayCutoutRectApproximation">M -30,28 h 60 v 60 h -60 Z</string>
+
+    <bool name="config_device_volte_available">true</bool>
+    <bool name="config_carrier_volte_available">true</bool>
+    <bool name="config_device_wfc_ims_available">true</bool>
+    <bool name="config_carrier_wfc_ims_available">true</bool>
+    <bool name="config_dynamic_bind_ims">true</bool>
+    <string name="config_ims_package">org.codeaurora.ims</string>
 </resources>