Add support for z/VM driver.

Add 'FCP' into connection_info in initialize_connection
in order to support IBM z/VM hypervisors. This change only
because z/VM need FCP(fibre channel port) info while other
platform don't need it. It will not have side effect
to other platforms since they can safely ignore it.

Change-Id: Ib2d72969608a84a7a200b96da3eefb3ccc13a096
Closes-Bug: #1323993
Merge "Add support for z/VM driver."