fix(mods): fixup for #181

php/ng/simplexml.sls

@@ -1,2 +1,2 @@
 {% set state = 'simplexml' %}
-{% include "php/ng/installed.jinja" %}
+{% include "php/ng/installed.jinja" %}

php/ng/xmlwriter.sls

@@ -0,0 +1,2 @@
+{% set state = 'xmlwriter' %}
+{% include "php/ng/installed.jinja" %}