Modify bridge gpio setting of the v3bat adc sensor

This commit modifies bridge gpio setting of the v3bat adc sensor
to support name based gpio line access and polarity support in
setting.

Tested: P3VBAT sensor reading worked correctly.

Change-Id: I676f98d4f27de250a07c8e44b8aa44336c42f58c
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
diff --git a/configurations/WFT Baseboard.json b/configurations/WFT Baseboard.json
index 9241802..469ccfd 100644
--- a/configurations/WFT Baseboard.json
+++ b/configurations/WFT Baseboard.json
@@ -193,7 +193,12 @@
             "Type": "ADC"
         },
         {
-            "BridgeGpio": 208,
+            "BridgeGpio": [
+                {
+                    "Name": "P3VBAT_BRIDGE_EN",
+                    "Polarity": "Low"
+                }
+            ],
             "Index": 7,
             "Name": "P3VBAT",
             "ScaleFactor": 0.3333,
@@ -629,13 +634,6 @@
             "Type": "Gpio"
         },
         {
-            "Direction": "Out",
-            "Index": 208,
-            "Name": "Bridge P3VBAT",
-            "Polarity": "Low",
-            "Type": "Gpio"
-        },
-        {
             "Direction": "Input",
             "Index": 214,
             "Name": "SMI Input",