Review Request: 8001753: build-infra: mismatch with full debug symbol control for hotspot

[Erik Joelsson]

This patch makes it possible to disable FDS in hotspot using the new 
build system, by translating the controlling variables in spec.gmk to 
what hotspot is expecting in hotspot-spec.gmk.

http://cr.openjdk.java.net/~erikj/8001753/webrev.01/
/Erik