Update expectations for some fast/forms tests which were rendering
placeholders with the wrong colors.

* platform/efl/fast/forms/input-placeholder-text-indent-expected.png: Added.
* platform/efl/fast/forms/isindex-placeholder-expected.png: Added.
* platform/efl/fast/forms/placeholder-with-positioned-element-expected.png: Added.
* platform/efl/fast/forms/textarea-placeholder-wrapping-expected.png: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@111680 268f45cc-cd09-0410-ab3c-d52691b4dbfc