firmware: export firmware_kset so that people can use that instead of the braindead firmware_register interface

Needed for future firmware subsystem cleanups.

In the end, the firmware_register/unregister functions will be deleted
entirely, but we need this symbol so that subsystems can migrate over.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Cc: Matt Tolentino <matthew.e.tolentino@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/base/firmware.c b/drivers/base/firmware.c
index 6a4e494..c7f635b 100644
--- a/drivers/base/firmware.c
+++ b/drivers/base/firmware.c
@@ -15,7 +15,8 @@
 
 #include "base.h"
 
-static struct kset *firmware_kset;
+struct kset *firmware_kset;
+EXPORT_SYMBOL_GPL(firmware_kset);
 
 int firmware_register(struct kset *s)
 {