package/lua-cffi: fix spaces
Commit 13114d0f9352531e5d7ebed45cd3f679407c61d9 forgot to add spaces
before and after '=' and added a spurious space in Config.in
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>