ABI: sysfs-class-hwmon: add a description for tempY_crit_alarm

Such ABI symbol is currently not described. Document it.

Signed-off-by: Mauro Carvalho Chehab <[e-mail]>
Link: https://lore.kernel.org/r/a14f98[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

Documentation/ABI/testing/sysfs-class-hwmon

···
 
 		RW
 
+What:		/sys/class/hwmon/hwmonX/tempY_crit_alarm
+Description:
+		Critical high temperature alarm flag.
+
+		- 0: OK
+		- 1: temperature has reached tempY_crit
+
+		RW
+
+		Contrary to regular alarm flags which clear themselves
+		automatically when read, this one sticks until cleared by
+		the user. This is done by writing 0 to the file. Writing
+		other values is unsupported.
+
 What:		/sys/class/hwmon/hwmonX/tempY_crit_hyst
 Description:
 		Temperature hysteresis value for critical limit.