Fix Templater condition issue

* for some reason the one liner with multiple conditions is not
  working and due to which the generation of ethernet_mac_address
  is completely ignored

Change-Id: I642fc744c039cafbbd9cea48f861931fb67948c1

krm-functions/templater/local-resource/example-use.yaml

@@ -36,7 +36,9 @@ template: |
   metadata:
     name: {{ .name }}
   spec:
-    {{- if and (.macAddresses) (.macAddresses.oam) }}
+    {{- if .macAddresses }}
+    {{- if .macAddresses.oam }}
     bootMACAddress: {{ .macAddresses.oam }}
     {{- end }}
+    {{- end }}
   {{ end -}}

manifests/function/hostgenerator-m3/hosttemplate.yaml

@@ -92,10 +92,12 @@ template: |
         {{- range $envAll.commonNetworking.links }}
       -
   {{ toYaml . | indent 6 }}
-        {{- if and ($host.macAddresses) (index $host.macAddresses .id) }}
+        {{- if $host.macAddresses }}
+        {{- if index $host.macAddresses .id }}
         ethernet_mac_address: {{ index $host.macAddresses .id }}
         {{- end }}
         {{- end }}
+        {{- end }}
       networks:
         {{- range $envAll.commonNetworking.networks }}
       -