hg: jigsaw/jake: Update jmod tool to allow the OS name/arch/version be set

[alan . bateman]

Changeset: e0b66ea73e11
Author:    alanb
Date:      2016-02-15 17:38 +0000
URL:       http://hg.openjdk.java.net/jigsaw/jake/rev/e0b66ea73e11

Update jmod tool to allow the OS name/arch/version be set

! make/CreateJmods.gmk