[PATCH 05/11][SCSI]mpt2sas: Clear PFA Status on SGPIO when PFA Drive is Removed or Replaced

Added code to send a SEP message that turns off the Predictive Failure LED when a drive is removed (if Predictive Failure LED was turned on). Added a new flag 'pfa_led_on' per device that tracks the status of Predictive Failure LED. When the drive is removed, this flag is checked and sends the

[PATCH 05/11][SCSI]mpt2sas: Clear PFA Status on SGPIO when PFA Drive is Removed or Replaced

Added code to send a SEP message that turns off the Predictive Failure LED when a drive is removed (if Predictive Failure LED was turned on). Added a new flag 'pfa_led_on' per device that tracks the status of Predictive Failure LED. When the drive is removed, this flag is checked and sends the