radio: iris: Freeing  memory after event handling

There was bug where we were not freeing the memory after event handling.
This patch adds the code to clear the skb memory.

Signed-off-by: Srinivasa Rao Uppala <uppalas@codeaurora.org>
diff --git a/drivers/media/radio/radio-iris.c b/drivers/media/radio/radio-iris.c
index 890d552..8dbdc01 100644
--- a/drivers/media/radio/radio-iris.c
+++ b/drivers/media/radio/radio-iris.c
@@ -525,7 +525,7 @@
 	__net_timestamp(skb);
 
 	radio_hci_event_packet(hdev, skb);
-
+	kfree_skb(skb);
 	return 0;
 }
 EXPORT_SYMBOL(radio_hci_recv_frame);