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/lpc32xx_eth.c b/drivers/net/lpc32xx_eth.c
index 3ba5b4b..6cc273c 100644
--- a/drivers/net/lpc32xx_eth.c
+++ b/drivers/net/lpc32xx_eth.c
@@ -582,7 +582,7 @@
 	}
 	bus->read = lpc32xx_eth_phy_read;
 	bus->write = lpc32xx_eth_phy_write;
-	sprintf(bus->name, dev->name);
+	strcpy(bus->name, dev->name);
 
 	ret = mdio_register(bus);
 	if (ret) {