hg: jdk/jdk: 8199451: Create linux-aarch64 cross-compilation devkit, and fix cross-compilation

[magnus.ihse.bursie at oracle.com]

Changeset: 564802b01ded
Author:    ihse
Date:      2018-03-12 17:00 +0100
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/564802b01ded

8199451: Create linux-aarch64 cross-compilation devkit, and fix cross-compilation
Reviewed-by: aph, erikj

! make/autoconf/flags.m4
! make/conf/jib-profiles.js
! make/devkit/Makefile
! make/devkit/Tools.gmk