Add Upstream

git-svn-id: http://ns2/svnsrc/distro/expat/expat-2.1.0@2021 a03fbada-158d-47ef-9f12-77e997805b15
Add libtool --tag 



git-svn-id: http://ns2/svnsrc/distro/expat/expat-2.1.0@2980 a03fbada-158d-47ef-9f12-77e997805b15
USe config.sub from AM 1.13 for aarch64

git-svn-id: http://ns2/svnsrc/distro/expat/expat-2.1.0@4029 a03fbada-158d-47ef-9f12-77e997805b15