Update unsupportedParts function to include "v2" (#5792)

Co-authored-by: Robert Knight <robert@microbit.org>

editor/flash.ts

@@ -253,7 +253,7 @@ class DAPWrapper implements pxt.packetio.PacketIOWrapper {
         if (this.usesCODAL === undefined)
             console.warn('try to access codal information before it is computed')
         if (!this.usesCODAL) {
-            return ["logotouch", "builtinspeaker", "microphone", "flashlog"]
+            return ["logotouch", "builtinspeaker", "microphone", "flashlog", "v2"]
         }
         return [];
     }