Fixes:
http://autobuild.buildroot.org/results/425/425ce97de58c53c4f56d43654c0ec8a7cd7c6430/
Similar to jquery-keyboard, it seems the cppzmq tarball on the autobuilder
is corrupt. Fix it by adding a .hash file so it falls back to our s.b.o
mirror.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Peter Korsgaard