Convert phutil_render_tag(X, Y, phutil_render_tag(...)) to phutil_render_html

Summary:
Created with spatch:

- phutil_render_tag
+ phutil_render_html
  (X, Y, phutil_render_tag(...))

- phutil_render_tag
+ phutil_render_html
  (X, Y, phutil_render_html(...))

Test Plan: Loaded homepage

Reviewers: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D4502