ACPI: bay: make drive_bays static

Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLen Brown <len.brown@intel.com>

drivers/acpi/bay.c

@@ -69,7 +69,7 @@ struct bay {
 	struct platform_device *pdev;
 };
 
-LIST_HEAD(drive_bays);
+static LIST_HEAD(drive_bays);
 
 
 /*****************************************************************************