[miio] add poweroff properties to zhimi powerstrip (#8899)

Signed-off-by: Marcel Verpaalen <marcel@verpaalen.com>

bundles/org.openhab.binding.miio/src/main/resources/database/zimi.powerstrip.v2.json

@@ -12,7 +12,6 @@
 				"channelType": "power",
 				"type": "Switch",
 				"refresh": true,
-				"ChannelGroup": "",
 				"actions": [
 					{
 						"command": "set_power",
@@ -27,7 +26,6 @@
 				"channelType": "powerUsage",
 				"type": "Number",
 				"refresh": true,
-				"ChannelGroup": "",
 				"actions": [
 					{
 						"parameterType": "EMPTY"
@@ -41,7 +39,6 @@
 				"channelType": "led",
 				"type": "Switch",
 				"refresh": true,
-				"ChannelGroup": "",
 				"actions": [
 					{
 						"command": "set_wifi_led",
@@ -55,7 +52,6 @@
 				"channel": "power_price",
 				"type": "Number",
 				"refresh": true,
-				"ChannelGroup": "",
 				"actions": [
 					{
 						"command": "set_power_price",
@@ -70,7 +66,6 @@
 				"channelType": "current",
 				"type": "Number",
 				"refresh": true,
-				"ChannelGroup": "",
 				"actions": []
 			},
 			{
@@ -80,7 +75,30 @@
 				"channelType": "temperature",
 				"type": "Number",
 				"refresh": true,
-				"ChannelGroup": "",
+				"actions": []
+			},
+			{
+				"property": "lp_autooff",
+				"friendlyName": "Low Power Auto Off",
+				"channel": "lp_autooff",
+				"type": "Number",
+				"refresh": true,
+				"actions": []
+			},
+			{
+				"property": "lp_autooff_delay",
+				"friendlyName": "Low Power Limit Time",
+				"channel": "lp_autooff_delay",
+				"type": "Number",
+				"refresh": true,
+				"actions": []
+			},
+			{
+				"property": "lp_threshold",
+				"friendlyName": "Low Power Threshold",
+				"channel": "lp_threshold",
+				"type": "Number",
+				"refresh": true,
 				"actions": []
 			}
 		]