Staging: hv: Make hv_pci_dev a static variable

Make hv_pci_dev a static variable.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/vmbus_drv.c

@@ -40,7 +40,7 @@
 #include "vmbus_private.h"
 
 
-struct pci_dev *hv_pci_dev;
+static struct pci_dev *hv_pci_dev;
 
 /* Main vmbus driver data structure */
 struct hv_bus {