[PATCH] 0/2 use sysfs bus dev_attrs for scsi_device attributes

[Patrick Mansfield <patmans@us.ibm.com>]

A couple patches so that when pending changes to sysfs/hotplug are made,
patches discussed here:

	http://marc.theaimsgroup.com/?t=110939742700002&r=1&w=2

We will get the hotplug event for a scsi_device only after all the default
scsi_device attributes are created.

The removal of the attr_changed_internally() was done so queue_type can
more easily be used as a default attribute (using the bus dev_attrs, there
is no way for some devices to create it read only, and for others to
create it as read write).

Tested with qla2300 and qla1280 drivers - neither currently support
writable queue_depth or queue_type.

The attr_overridden (and post these patches, scsi_sysfs_sdev_attrs) should
someday be removed, the only attribute being overridden (versus a host
specific scsi_device attribute) today is queue_depth, and we have
shost->change_queue_depth that can be used instead.

-- Patrick Mansfield