Rename all properties to UpperCamelCase

Upstream dbus standard is UpperCamelCase, start matching and
check in json schema to start failing builds that don't match.

Change-Id: I2d2c6fec5a5a0b07c88c843257fa7c88d420c4e5
Signed-off-by: James Feist <james.feist@linux.intel.com>
diff --git a/overlay_templates/pmbus.template b/overlay_templates/pmbus.template
index 7aca62a..ce1df8e 100644
--- a/overlay_templates/pmbus.template
+++ b/overlay_templates/pmbus.template
@@ -1,16 +1,16 @@
 /dts-v1/;
 /plugin/;
 / {
-    compatible = "$platform";
+    compatible = "$Platform";
     fragment@0{
-        target = <&i2c$bus>;
+        target = <&i2c$Bus>;
         __overlay__{
             #address-cells = <1>;
             #size-cells = <0>;
             status = "okay";
-            $Name: pmbus@$address {
+            $Name: pmbus@$Address {
                 compatible = "pmbus";
-                reg = <0x$address>;
+                reg = <0x$Address>;
                 oemname1 = "$Name";
             };
         };