RFR: JDK-8033532 Freetype include statement must come before X11 include

[Magnus Ihse Bursie]

As reported by David Chase, if the X11 include file contains an older 
version of freetype than the one detected by configure, the build will fail.

The solution is to move the include of freetype prior to the include of X11.
Bug: https://bugs.openjdk.java.net/browse/JDK-8033532
WebRev: 
http://cr.openjdk.java.net/~ihse/JDK-8033532-freetype-include-must-come-before-X11-include/webrev.01

/Magnus