RFR: JDK-8029304: JFR broken in 7u train for JDK Linux for ARM or OpenJDK

[Erik Joelsson]

Hello,

Open part of this revew.

Please review this minor patch to 7u, moving the test for if the JDK 
part of JFR should be built to a single location in a closed makefile.

Bug: https://bugs.openjdk.java.net/browse/JDK-8029304
Webrev: http://cr.openjdk.java.net/~erikj/8029304/webrev.jdk.01/

/Erik