[ersky9x] Bluetooth FrSky proxy added (ported from ersky9x, still untested, not part of the release)

src/frsky.cpp

@@ -431,6 +431,11 @@ NOINLINE void processSerialData(uint8_t stat, uint8_t data)
   static uint8_t numPktBytes = 0;
   static uint8_t dataState = frskyDataIdle;
 
+#if defined(BLUETOOTH)
+  // TODO if (g_model.bt_telemetry)
+  btPushByte(data);
+#endif
+
 #if !defined(PCBARM)
   if (stat & ((1 << FE0) | (1 << DOR0) | (1 << UPE0))) {
     // discard buffer and start fresh on any comms error