IOC mediator: fix the issue of abnormally missing tx package

The issue will result in the loss of wakeup reason and signal
data, because the CBC header was not added when generating the
tx package.

Tracked-On: #2283
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>

devicemodel/hw/platform/ioc.c

@@ -1166,6 +1166,7 @@ ioc_build_request(struct ioc_dev *ioc, int32_t link_len, int32_t srv_len)
 	}
 	req->srv_len = srv_len;
 	req->link_len = link_len;
+	req->rtype = CBC_REQ_T_PROT;
 	cbc_request_enqueue(ioc, req, CBC_QUEUE_T_RX, false);
 }