hg: build-infra/jdk9/hotspot: Start moving CFLAGS into configure.

[magnus.ihse.bursie at oracle.com]

Changeset: 1fc90606a535
Author:    ihse
Date:      2016-01-15 13:42 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk9/hotspot/rev/1fc90606a535

Start moving CFLAGS into configure.

! makefiles/Common.gmk
! makefiles/GensrcAdlc.gmk
! makefiles/JvmPlatforms.gmk