nvme-print-json: add TMT2 key value description

Since TMT1 added but missed for TMT2.

Signed-off-by: Tokunori Ikegami <[email protected]>

Author: ikegami-t

nvme-print-json.c

@@ -3732,7 +3732,7 @@ static void json_feature_show_fields_hctm(struct json_object *r, unsigned int re
 	obj_add_degrees_fahrenheit_str(r, "TMT1 fahrenheit", result >> 16);
 
 	sprintf(json_str, "%u K", result & 0xffff);
-	obj_add_str(r, "Thermal Management Temperature 2", json_str);
+	obj_add_str(r, "Thermal Management Temperature 2 (TMT2)", json_str);
 
 	sprintf(json_str, "%s", nvme_degrees_string(result & 0xffff));
 	obj_add_str(r, "TMT2 celsius", json_str);