add update target to toolchain/
author nbd
()
committer nbd
()
commit 638af739806c09a7a235b9091f1372f398b625aa
tree 75db56e1bff586d349ef9394cc828c57bbb82cbf
parent f26af3d30d313564b07fd3a18dbafc10a7e0540f
add update target to toolchain/

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7754 3c298f89-4303-0410-b956-a3cf2f4a3e73
toolchain/Makefile
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