Return previous behaviour of 'b' and 'r' commands

By mistake previous command changed 'b' and 'r' to flash second taget
not first one.

Author: Chimstaz

Src/main.c

@@ -394,15 +394,15 @@ void StartDefaultTask(void const * argument)
         if (usb_open_file("red.bin", &file, FA_READ) != 0) {
           break;
         }
-        target_list.next->next->ops->flash_target(target_list.next->next->priv, &file, &progress);
+        target_list.next->ops->flash_target(target_list.next->priv, &file, &progress);
         usb_close_file(&file);
         break;
       case 'b':
         progress = 0;
         if (usb_open_file("blue.bin", &file, FA_READ) != 0) {
           break;
         }
-        target_list.next->next->ops->flash_target(target_list.next->next->priv, &file, &progress);
+        target_list.next->ops->flash_target(target_list.next->priv, &file, &progress);
         usb_close_file(&file);
         break;
     }