media: uapi/linux/cec.h: add 5V events

Add two new events to signal when the 5V line goes high or low.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab+samsung@kernel.org>

include/uapi/linux/cec.h

@@ -384,6 +384,8 @@ struct cec_log_addrs {
 #define CEC_EVENT_PIN_CEC_HIGH		4
 #define CEC_EVENT_PIN_HPD_LOW		5
 #define CEC_EVENT_PIN_HPD_HIGH		6
+#define CEC_EVENT_PIN_5V_LOW		7
+#define CEC_EVENT_PIN_5V_HIGH		8
 
 #define CEC_EVENT_FL_INITIAL_STATE	(1 << 0)
 #define CEC_EVENT_FL_DROPPED_EVENTS	(1 << 1)