[SCSI] fnic: updated MAINTAINERS list

Updated MAINTAINERS list for fnic driver with appropriate names and email ids.

Signed-off-by: Brian Uchino <buchino@cisco.com>
Signed-off-by: Hiral Patel <hiralpat@cisco.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>