Add support for SFF-8024 Rev 4.0 of pluggable I/O configuration
and some common utilities for SFF-8436/8636 and SFF-8472/8079.
Signed-off-by: Robin Zhang <robinx.zhang@intel.com>
Signed-off-by: Kevin Liu <kevinx.liu@intel.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
