Enable JAMF template generation for ios

Change-Id: I98aeb23aece12046b62542142045b760ae8c75ce
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2218472
Commit-Queue: Julian Pastarmov <pastarmovj@chromium.org>
Auto-Submit: Yann Dago <ydago@chromium.org>
Reviewed-by: Julian Pastarmov <pastarmovj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#775047}

components/policy/tools/template_writers/writers/jamf_writer.py

@@ -14,7 +14,7 @@ def GetWriter(config):
   See the constructor of TemplateWriter for description of
   arguments.
   '''
-  return JamfWriter(['mac'], config)
+  return JamfWriter(['mac', 'ios'], config)
 
 
 class JamfWriter(template_writer.TemplateWriter):