configurations: Bletchley: add BridgeGpio and PollRate for P3V_BAT

Add below two items to P3V_BAT to reduce power consumption of battery

- Add a BridgeGpio (BAT_DETECT) for P3V_BAT sensor for reducing power
  consumption when ADC sensor not being read
- Increase PollRate to 86400 seconds, read once every 24 hours

Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Change-Id: I73aee2754d1c56f74be5cede4062ba20fe4a77c9
diff --git a/configurations/bletchley_baseboard.json b/configurations/bletchley_baseboard.json
index e8b5ac7..cd52f03 100644
--- a/configurations/bletchley_baseboard.json
+++ b/configurations/bletchley_baseboard.json
@@ -61,8 +61,16 @@
             "Type": "ADC"
         },
         {
+            "BridgeGpio": [
+                {
+                    "Name": "BAT_DETECT",
+                    "Polarity": "High",
+                    "SetupTime": 1
+                }
+            ],
             "Index": 3,
             "Name": "P3V_BAT",
+            "PollRate": 86400,
             "ScaleFactor": 0.332226,
             "Thresholds": [
                 {