net: pasemi: Make pasemi_mac_init_module static

Fix sparse warning:

drivers/net/ethernet/pasemi/pasemi_mac.c:1842:5: warning:
 symbol 'pasemi_mac_init_module' was not declared. Should it be static?
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/pasemi/pasemi_mac.c

@@ -1839,7 +1839,7 @@ static void __exit pasemi_mac_cleanup_module(void)
 	pci_unregister_driver(&pasemi_mac_driver);
 }
 
-int pasemi_mac_init_module(void)
+static int pasemi_mac_init_module(void)
 {
 	int err;