hg: valhalla/valhalla: Uncomment line from CompileJavaModules which causes indy string concat to be erroneously enabled in java.base

[maurizio.cimadamore at oracle.com]

Changeset: 68c1f041e328
Author:    mcimadamore
Date:      2016-03-16 12:59 +0000
URL:       http://hg.openjdk.java.net/valhalla/valhalla/rev/68c1f041e328

Uncomment line from CompileJavaModules which causes indy string concat to be erroneously enabled in java.base

! make/CompileJavaModules.gmk