NetApp E-Series: Add Fibre Channel Support

NetApp E-Series: Add Fibre Channel Support

The NetApp driver for E-series product lines currently support iSCSI. This
patch adds Fibre Channel support to the E-Series driver. This driver reuses
the same functionality as the E-Series iSCSI driver except for the
initialize_connection and terminate_connection driver methods which make
full use of Cinder's FibreChannel zone manager.

DocImpact
Implements blueprint: add-fibre-channel-support-to-netapp-eseries
Co-Authored-By: Alex Meade <mr.alex.meade@gmail.com>
Co-Authored-By: Yogesh Kshirsagar <ykshirsa@netapp.com>
Change-Id: I130f473aaa27ace4cd16a98f75c797aa967715b3