Add a resource overlay to define whether 5G can be connected in DSDS

Bug: 152786064
Test: build and manual
Change-Id: Iba14340830ff3f0334bd0c8add18597330051f8a
diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index 98af8e6..fb177e1 100755
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -8504,4 +8504,9 @@
                     USER_ACTIVITY_NOTIFICATION_DELAY);
         }
     }
+
+    @Override
+    public boolean canConnectTo5GInDsdsMode() {
+        return mApp.getResources().getBoolean(R.bool.config_5g_connection_in_dsds_mode);
+    }
 }