Driver core: move the static kobject out of struct driver

This patch removes the kobject, and a few other driver-core-only fields
out of struct driver and into the driver core only.  Now drivers can be
safely create on the stack or statically (like they currently are.)

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index d56a05f..bdd59e8 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -499,7 +499,7 @@
 	 */
 	spin_lock(&platform_bus_type.p->klist_drivers.k_lock);
 	drv->probe = NULL;
-	if (code == 0 && list_empty(&drv->driver.klist_devices.k_list))
+	if (code == 0 && list_empty(&drv->driver.p->klist_devices.k_list))
 		retval = -ENODEV;
 	drv->driver.probe = platform_drv_probe_fail;
 	spin_unlock(&platform_bus_type.p->klist_drivers.k_lock);