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/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index 9a7ebca..a79ea81 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -130,7 +130,7 @@
 Desc:	StorVsc driver initialization.
 
 --*/
-int storvsc_drv_init(PFN_DRIVERINITIALIZE pfn_drv_init)
+static int storvsc_drv_init(PFN_DRIVERINITIALIZE pfn_drv_init)
 {
 	int ret=0;
 	STORVSC_DRIVER_OBJECT *storvsc_drv_obj=&g_storvsc_drv.drv_obj;
@@ -184,7 +184,7 @@
 Desc:
 
 --*/
-void storvsc_drv_exit(void)
+static void storvsc_drv_exit(void)
 {
 	STORVSC_DRIVER_OBJECT *storvsc_drv_obj=&g_storvsc_drv.drv_obj;
 	struct driver_context *drv_ctx=&g_storvsc_drv.drv_ctx;