conf change: sensors: read and write path rename

Rename the readpath and writepath for camelcase styling to make all
configuration variables consistent.

Change-Id: I33f475075c8f40cd2029a5c0bfda950846cd5d44
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/scripts/sensor-example.yaml b/scripts/sensor-example.yaml
index 7378bff..1debe3e 100644
--- a/scripts/sensor-example.yaml
+++ b/scripts/sensor-example.yaml
@@ -1,31 +1,31 @@
 fan2:
   type: fan
-  readpath: /xyz/openbmc_project/sensors/fan_tach/fan2
-  writepath: /sys/class/hwmon/hwmon0/pwm1
+  readPath: /xyz/openbmc_project/sensors/fan_tach/fan2
+  writePath: /sys/class/hwmon/hwmon0/pwm1
   min: 0
   max: 255
   timeout: 0
 
 fan6:
   type: fan
-  readpath: /xyz/openbmc_project/sensors/fan_tach/fan6
-  writepath:
+  readPath: /xyz/openbmc_project/sensors/fan_tach/fan6
+  writePath:
   min: 0
   max: 0
   timeout: 0
 
 temp1:
   type: temp
-  readpath: /xyz/openbmc_project/sensors/temperature/temp1
-  writepath: 
+  readPath: /xyz/openbmc_project/sensors/temperature/temp1
+  writePath: 
   min: 0
   max: 0
   timeout: 0
 
 sluggish0:
   type: margin
-  readpath: /xyz/openbmc_project/extsensors/margin/sluggish0
-  writepath:
+  readPath: /xyz/openbmc_project/extsensors/margin/sluggish0
+  writePath:
   min: 0
   max: 0
   timeout: 0