net sched: indentation and other OCD stylistic fixes

include/net/act_api.h

include/net/tc_act/tc_defact.h

include/uapi/linux/pkt_cls.h

net/sched/act_api.c

net/sched/act_bpf.c

net/sched/act_gact.c

net/sched/act_ipt.c

net/sched/act_vlan.c

net/sched/cls_api.c