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/arch/powerpc/cpu/mpc8xx/scc.c b/arch/powerpc/cpu/mpc8xx/scc.c
index 5498440..3474637 100644
--- a/arch/powerpc/cpu/mpc8xx/scc.c
+++ b/arch/powerpc/cpu/mpc8xx/scc.c
@@ -77,7 +77,7 @@
 	dev = (struct eth_device*) malloc(sizeof *dev);
 	memset(dev, 0, sizeof *dev);
 
-	sprintf(dev->name, "SCC");
+	strcpy(dev->name, "SCC");
 	dev->iobase = 0;
 	dev->priv   = 0;
 	dev->init   = scc_init;