mei: rename to mei_host_buffer_is_empty to hbuf_is_ready

we rename the mei_host_buffer_is_empty to keep naming
convention of hbuf and also make the query more generic
to be correct also for other under laying hardware

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index 3bebf8d..45ea718 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -486,7 +486,7 @@
 	rets = mei_irq_write_handler(dev, &complete_list);
 end:
 	dev_dbg(&dev->pdev->dev, "end of bottom half function.\n");
-	dev->mei_host_buffer_is_empty = mei_hbuf_is_ready(dev);
+	dev->hbuf_is_ready = mei_hbuf_is_ready(dev);
 
 	bus_message_received = false;
 	if (dev->recvd_msg && waitqueue_active(&dev->wait_recvd_msg)) {