Similar to jquery-keyboard, it seems the bullet tarball on the autobuilder
is corrupt. Fix it by adding a .hash file so it falls back to our s.b.o
mirror.
Fixes:
http://autobuild.buildroot.net/results/39b/39bb344e3631e5f8872336cef981db5c6ec382c1
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
