mei: revamp interrupt thread handlers

1. Use common prefix mei_cl_irq_ and common parameter list
for client handlers.
2. Update function kdocs

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index b3e5098..749452f 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -443,11 +443,11 @@
  *
  * returns 0, OK; otherwise, error.
  */
-int mei_amthif_irq_write_complete(struct mei_device *dev, s32 *slots,
-			struct mei_cl_cb *cb, struct mei_cl_cb *cmpl_list)
+int mei_amthif_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
+				  s32 *slots, struct mei_cl_cb *cmpl_list)
 {
+	struct mei_device *dev = cl->dev;
 	struct mei_msg_hdr mei_hdr;
-	struct mei_cl *cl = cb->cl;
 	size_t len = dev->iamthif_msg_buf_size - dev->iamthif_msg_buf_index;
 	u32 msg_slots = mei_data2slots(len);