Factor out the internal of rpc_iscsi_delete_portal_group() into
a function _rpc_iscsi_change_portal_group() and rename the related
data structure to use them for the upcoming RPC,
iscsi_start_portal_group.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I965f1e52f04fb54c6a89987836f89c508441a37e
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5089
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>