Support JSON config/info dump for target node. These are added
to tgt_node.c Text config dump is moved to tgt_node.c too.
All accesses to g_spdk_iscsi.target_head are consolidated into
tgt_node.c to extract target_head from g_spdk_iscsi.
Change-Id: Ibdf57c6ec9457d762c5640483b5810c9a74604ef
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/407848
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>