[SCSI] hpsa: hide logical drives with format in progress from linux

[SCSI] hpsa: hide logical drives with format in progress from linux

SCSI mid layer doesn't seem to handle logical drives undergoing format
very well.  scsi_add_device on such devices seems to result in hitting
those devices with a TUR at a rate of 3Hz for awhile, transitioning
to hitting them with a READ(10) at a much higher rate indefinitely,
and at boot time, this prevents the system from coming up.  If we
do not expose such devices to the kernel, it isn't bothered by them.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>