This patch enables X540 hardware to use it's own set of support
functions.  This is useful as it has no need of SFP+ support.  A
couple minor bugs with the eeprom semaphore were also cleaned up.
Signed-off-by: NDon Skidmore <donald.c.skidmore@intel.com>
Tested-by: NStephen Ko <stephen.s.ko@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>