Bug: https://bugs.openjdk.java.net/browse/JDK-8203667
Webrev: http://cr.openjdk.java.net/~erikj/8203667/webrev.01/ /Erik
Due to a typo in spec.gmk.in, the platform specific include files have
lost their platform sub directory in the jdk image include dir.
- RFR: JDK-8203667: Platform specific include files in jdk ima... Erik Joelsson
