RFR 8003161: Cannot build jdk8/build using the new build system after latest merge.

[Fredrik Öhrström]

It seems that some changes (like introduction of cmshalf.c) did not 
update the new makefiles
and caused the OpenJDK only build to fail.

http://cr.openjdk.java.net/~ohrstrom/webrev-8003161-root/
http://cr.openjdk.java.net/~ohrstrom/webrev-8003161-jdk/
//Fredrik