Staging: hv: fix sparse static warnings

This fixes up all of the sparse warnings about static functions.

Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index 02b200b..439c357 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -90,7 +90,7 @@
 Desc:	NetVsc driver initialization
 
 --*/
-int netvsc_drv_init(PFN_DRIVERINITIALIZE pfn_drv_init)
+static int netvsc_drv_init(PFN_DRIVERINITIALIZE pfn_drv_init)
 {
 	int ret=0;
 	NETVSC_DRIVER_OBJECT *net_drv_obj=&g_netvsc_drv.drv_obj;
@@ -634,7 +634,7 @@
 Desc:
 
 --*/
-void netvsc_drv_exit(void)
+static void netvsc_drv_exit(void)
 {
 	NETVSC_DRIVER_OBJECT *netvsc_drv_obj=&g_netvsc_drv.drv_obj;
 	struct driver_context *drv_ctx=&g_netvsc_drv.drv_ctx;