configurations: Change Nisqually NamedPresenceGpio

The NamedPresenceGpio property for the power supplies should use the
updated gpio-line-names, not the schematic labels.

Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Change-Id: I6c8217064d6bf2e74bd3c15269862a41629c396c
diff --git a/configurations/Nisqually.json b/configurations/Nisqually.json
index 35e574a..8831c4d 100644
--- a/configurations/Nisqually.json
+++ b/configurations/Nisqually.json
@@ -5,28 +5,28 @@
             "Type": "IBMCFFPSConnector",
             "I2CAddress": 104,
             "I2CBus": 3,
-            "NamedPresenceGpio": "PS0_PRES_N"
+            "NamedPresenceGpio": "presence-ps0"
         },
         {
             "Name": "Power Supply Slot 1",
             "Type": "IBMCFFPSConnector",
             "I2CAddress": 105,
             "I2CBus": 3,
-            "NamedPresenceGpio": "PS1_PRES_N"
+            "NamedPresenceGpio": "presence-ps1"
         },
         {
             "Name": "Power Supply Slot 2",
             "Type": "IBMCFFPSConnector",
             "I2CAddress": 106,
             "I2CBus": 3,
-            "NamedPresenceGpio": "PS2_PRES_N"
+            "NamedPresenceGpio": "presence-ps2"
         },
         {
             "Name": "Power Supply Slot 3",
             "Type": "IBMCFFPSConnector",
             "I2CAddress": 107,
             "I2CBus": 3,
-            "NamedPresenceGpio": "PS3_PRES_N"
+            "NamedPresenceGpio": "presence-ps3"
         },
         {
             "Address": "0x48",