Parse the 'key=value' format of custom attributes

We weren't initializing custom attributes because we were not
parsing the backend format appropriately. We needed to parse
the 'key=value'.

lib/nodes/addon/components/driver-vmwarevsphere/component.js

@@ -367,6 +367,17 @@ export default Component.extend(NodeDriver, {
     set(this, 'vappMode', getInitialVappMode(get(this, 'config')));
   },
 
+  initCustomAttributes() {
+    set(this, 'initialCustomAttributes', get(this, 'config.customAttribute').map((v) => {
+      const [key, value] = v.split('=');
+
+      return {
+        key,
+        value,
+      };
+    }));
+  },
+
   updateVappOptions(opts) {
     set(this, 'config.vappIpprotocol', opts.vappIpprotocol);
     set(this, 'config.vappIpallocationpolicy', opts.vappIpallocationpolicy);