Add include header for NFTNL_CTTIMEOUT_ARRAY_MAX. Fixes compilation error
"../include/obj.h:43:21: error: ‘NFTNL_CTTIMEOUT_ARRAY_MAX’
undeclared here (not in a function);
Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>