libepoxy: add .hash file
Fixes:
http://autobuild.buildroot.org/results/e19/e199c6a0764f9c1314795c2d4699cbae3a98a8b0/
http://autobuild.buildroot.org/results/4c0/4c096be10febb4db332e3eca3438e7b4aab40000/
Similar to jquery-keyboard, it seems the libepoxy 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