net_sched: act: move idx_gen into struct tcf_hashinfo

There is no need to store the index separatedly
since tcf_hashinfo is allocated statically too.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc include/net/act_api.h
Simple merge

diff --cc net/sched/act_api.c
Simple merge

diff --cc net/sched/act_csum.c
Simple merge

diff --cc net/sched/act_gact.c
Simple merge

diff --cc net/sched/act_ipt.c
Simple merge

diff --cc net/sched/act_mirred.c
Simple merge

diff --cc net/sched/act_nat.c
Simple merge

diff --cc net/sched/act_pedit.c
Simple merge

diff --cc net/sched/act_police.c
Simple merge

diff --cc net/sched/act_simple.c
Simple merge

diff --cc net/sched/act_skbedit.c
Simple merge