src: fix warning in compilation

This warning has been there for quite some time, fix it by relaxing the
const type checking.

callback.c: In function `__expect_callback':
callback.c:30: warning: passing argument 2 of `__parse_expect' from incompatible pointer type
../../include/internal/prototypes.h:32: note: expected `const struct nfattr **' but argument is of type `struct nfattr **'

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions