scsi: qedi: Add firmware error recovery invocation support

Add support to initiate MFW process recovery for all the devices if storage
function receives the event first.

Also added fix for kernel test robot warning,

>> drivers/scsi/qedi/qedi_main.c:1119:6: warning: no previous prototype
>> for 'qedi_schedule_hw_err_handler' [-Wmissing-prototypes]

Link: https://lore.kernel.org/r/20200908095657.26821-8-mrangankar@marvell.com


Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>