nvme-cli: Add routine to compare ctrl_list_item to connect args

nvme-cli: Add routine to compare ctrl_list_item to connect args

In preparation for searching controllers to match with connect args:

Create a new routine that receives a structure containing connect
arguments and a device name. The routine will build and fill in a
ctrl_list_item for the device and compare its attributes with the
connect arguments. The routine returns true/false on whether they
match.

Routine is defined as a global as a subsequent patch will use it
from the fabrics routines.

Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>