[media] cec: zero counters in cec_received_msg()

Make sure the TX counters are zeroed in the cec_msg struct.
Non-zero TX counters make no sense when a message is received,
and applications should not see non-zero values here.
Signed-off-by: NHans Verkuil <hansverk@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/cec/cec-adap.c

@@ -874,6 +874,10 @@ void cec_received_msg(struct cec_adapter *adap, struct cec_msg *msg)
 	msg->sequence = msg->reply = msg->timeout = 0;
 	msg->tx_status = 0;
 	msg->tx_ts = 0;
+	msg->tx_arb_lost_cnt = 0;
+	msg->tx_nack_cnt = 0;
+	msg->tx_low_drive_cnt = 0;
+	msg->tx_error_cnt = 0;
 	msg->flags = 0;
 	memset(msg->msg + msg->len, 0, sizeof(msg->msg) - msg->len);