Fix GCC format-security errors and convert sprintfs.

With format-security errors turned on, GCC picks up the use of sprintf with
a format parameter not being a string literal.

Simple uses of sprintf are also converted to use strcpy.

Signed-off-by: Ben Whitten <ben.whitten@gmail.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/net/altera_tse.c b/drivers/net/altera_tse.c
index 3eaa270..92a1b64 100644
--- a/drivers/net/altera_tse.c
+++ b/drivers/net/altera_tse.c
@@ -417,7 +417,7 @@
 
 	bus->read = tse_mdio_read;
 	bus->write = tse_mdio_write;
-	snprintf(bus->name, sizeof(bus->name), name);
+	snprintf(bus->name, sizeof(bus->name), "%s", name);
 
 	bus->priv = (void *)priv;