NEGCACHE: Adding timeout to struct sss_nc_ctx
It adds timeout of negative cache to handling
struct sss_nc_ctx.
There is one change in API of negatice cache:
* int sss_ncache_init(TALLOC_CTX *memctx,
uint32_t timeout, <----- new
struct sss_nc_ctx **_ctx);
There is also one new function in common/responder:
* errno_t responder_get_neg_timeout_from_confdb(struct confdb_ctx *cdb,
uint32_t *ncache_timeout);
Resolves:
https://fedorahosted.org/sssd/ticket/2317
Reviewed-by: Pavel Březina <pbrezina@redhat.com>