[SCSI] allow sleeping in ->eh_host_reset_handler()

Documentation/scsi/scsi_mid_low_api.txt

drivers/fc4/fc.c

drivers/fc4/fc_syms.c

drivers/fc4/fcp_impl.h

drivers/message/fusion/mptscsih.c

drivers/s390/scsi/zfcp_scsi.c

drivers/scsi/3w-9xxx.c

drivers/scsi/3w-xxxx.c

drivers/scsi/53c700.c

drivers/scsi/BusLogic.c

drivers/scsi/NCR53c406a.c

drivers/scsi/a2091.c

drivers/scsi/a3000.c

drivers/scsi/aacraid/linit.c

drivers/scsi/aha1542.c

drivers/scsi/aic7xxx_old.c

drivers/scsi/arm/fas216.c

drivers/scsi/dpt_i2o.c

drivers/scsi/eata.c

drivers/scsi/eata_pio.c