SubGhz: fix waiting for UPLOAD to be sent, for RAW file worker (#1146)

* SubGhz: fix waiting for UPLOAD to be sent
* SubGhz: remove debug output

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

lib/subghz/subghz_file_encoder_worker.c

@@ -167,7 +167,10 @@ static int32_t subghz_file_encoder_worker_thread(void* context) {
     }
     //waiting for the end of the transfer
     FURI_LOG_I(TAG, "End read file");
-
+    while(!furi_hal_subghz_is_async_tx_complete()) {
+        osDelay(5);
+    }
+    FURI_LOG_I(TAG, "End transmission");
     while(instance->worker_running) {
         if(instance->worker_stoping) {
             if(instance->callback_end) instance->callback_end(instance->context_end);