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/board/mpl/common/common_util.c b/board/mpl/common/common_util.c
index 6b96bd5..2262175 100644
--- a/board/mpl/common/common_util.c
+++ b/board/mpl/common/common_util.c
@@ -698,12 +698,12 @@
 		s=getenv ("serial#");
 #ifdef CONFIG_PIP405
 		if (!s || strncmp (s, "PIP405", 6)) {
-			sprintf(buf,"### No HW ID - assuming PIP405");
+			strcpy(buf,"### No HW ID - assuming PIP405");
 		}
 #endif
 #ifdef CONFIG_MIP405
 		if (!s || strncmp (s, "MIP405", 6)) {
-			sprintf(buf,"### No HW ID - assuming MIP405");
+			strcpy(buf,"### No HW ID - assuming MIP405");
 		}
 #endif
 		else {
@@ -718,7 +718,7 @@
 				}
 				buf[i++] = *s;
 			}
-			sprintf(&buf[i]," SN ");
+			strcpy(&buf[i]," SN ");
 			i+=4;
 			for (; s < e; ++s) {
 				buf[i++] = *s;
@@ -744,7 +744,7 @@
 			ctfb.modeIdent);
 		return;
 	case 1:
-		sprintf	(buf, "%s",CONFIG_IDENT_STRING);
+		strcpy(buf, CONFIG_IDENT_STRING);
 		sprintf (info, " %s", &buf[1]);
 		return;
     }