[XS] RFR : 8217979: lib-freetype related configure messages contain wrong configure flag names

[Baesken, Matthias]

Hello,  please review  this small fix.

It  changes wrong  configure output messages related to freetype .



Bug/webrev :

https://bugs.openjdk.java.net/browse/JDK-8217979

http://cr.openjdk.java.net/~mbaesken/webrevs/8217979.0/



Thanks, Matthias