class: rename "devices" to "class_devices" in internal class structure

This renames the struct class "devices" field to be "class_devices" to
make things easier when struct bus_type and struct class merge in the
future.  It also makes grepping for fields easier as well.

Based on an idea from Kay.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/base.h b/drivers/base/base.h
index 0ec372a..586c4ca 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -42,7 +42,7 @@
  *
  * @subsys - the struct kset that defines this class.  This is the main kobject
  * @children - list of class_devices associated with this class
- * @devices - list of devices associated with this class
+ * @class_devices - list of devices associated with this class
  * @interfaces - list of class_interfaces associated with this class
  * @class_dirs -
  * @sem - semaphore to protect the children, devices, and interfaces lists.
@@ -55,7 +55,7 @@
  */
 struct class_private {
 	struct kset subsys;
-	struct list_head devices;
+	struct list_head class_devices;
 	struct list_head interfaces;
 	struct kset class_dirs;
 	struct semaphore sem;