[wined3d] Add DF16 and DF24 formats

[Vijay Kiran Kamuju]

This patch credit goes to  Roland Haeder
This is from http://bugs.winehq.org/show_bug.cgi?id=23807
I am sending in his stead as I also got the same issue when playing Hearthstone.

Changelog:
[wined3d] Add DF16 and DF24 formats
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