Add an invocation of `start_subsystem_init` method of spdkcli to iscsi test.
This method is one of few that left untested in spdkcli.
iscsi test had to be changed a bit because `start_subsystem_init` requires
spdk to be started with `--wait-for-rpc`.
This patch is related to trello task:
https://trello.com/c/CHOOxcGj/151-spdkcli-extend-test-coverage
Change-Id: I4f49f2ce499ef849d4d41a391844f5947c1b133d
Signed-off-by: Vitaliy Mysak <vitaliy.mysak@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/462213
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
0d33baa14c