hg: jdk9/dev: 8136771: Implement the license-swap logic as a make target

[erik.joelsson at oracle.com]

Changeset: a420707436c6
Author:    erikj
Date:      2016-06-08 15:13 +0200
URL:       http://hg.openjdk.java.net/jdk9/dev/rev/a420707436c6

8136771: Implement the license-swap logic as a make target
Reviewed-by: tbell

+ make/CreateHgtipFiles.gmk
! make/GensrcModuleInfo.gmk
! make/Main.gmk
! make/common/MakeBase.gmk