RFR: 8071710: [solaris] libfontmanager should be linked against headless awt library

[Phil Race]

Hi,

A mistake was made in JDK 8 so that the font libraries for Solaris are now
being linked against X11 libraries and this is a problem for headless 
(server) use
For more details see :
https://bugs.openjdk.java.net/browse/JDK-8071710

I am presenting jdk 9 & 8 fixes here since this needs a backport and the
change is not identical

The open part of the JDK 9 fix : http://cr.openjdk.java.net/~prr/8071710/

The complete JDK 8 fix : http://cr.openjdk.java.net/~prr/8071710.8u/
(the t2k linking was moved to closed at some point)

I've submitted JPRT jobs and also verified that UI demos (like 
SwingSet2) still run

-phil.