RFR: JDK-8225023: JPackageCreateAppImageBundleNameTest fails

[Alexander Matveev]

Please review the jpackage fix for bug [1] at [2].

This is a fix for the JDK-8200758-branch branch of the open sandbox 
repository (jpackage).

- Fixed by using correct id for MAC_CF_BUNDLE_NAME, otherwise it was not 
set from CLI.

[1] https://bugs.openjdk.java.net/browse/JDK-8225023
[2] http://cr.openjdk.java.net/~almatvee/8225023/webrev.00/

Thanks,
Alexander