RFR: JDK-8035187: Move fontconfig src files to make/data

[Tim Bell]

Hi Erik:

> These files are used as input to a build tool to create files in the 
> lib output directory. Since they aren't normal properties files to be 
> compiled, cleaned or copied to the classes dir, they should be moved 
> to the make/data dir. I also unified the layout so that the makefile 
> could be simplified.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8035187
> Webrev: http://cr.openjdk.java.net/~erikj/8035187/webrev.jdk.01/

Looks good to me.

Tim