SCSI: convert struct class_device to struct device

It's big, but there doesn't seem to be a way to split it up smaller...

Signed-off-by: Tony Jones <tonyj@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 165734a..07ed56f 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -443,7 +443,7 @@
 	MAX_PERFORMANCE,
 	MEDIUM_POWER,
 };
-extern struct class_device_attribute class_device_attr_link_power_management_policy;
+extern struct device_attribute dev_attr_link_power_management_policy;
 
 #ifdef CONFIG_ATA_SFF
 struct ata_ioports {