include sprintf.h when we use snprintf()

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3271 a1c6a512-1295-4272-9138-f99709370657

apps/screens.c

@@ -30,6 +30,7 @@
 #include "settings.h"
 #include "status.h"
 #include "playlist.h"
+#include "sprintf.h"
 
 #ifdef HAVE_LCD_BITMAP
 #define BMPHEIGHT_usb_logo 32

apps/settings.c

@@ -53,6 +53,7 @@
 #include "language.h"
 #include "wps-display.h"
 #include "powermgmt.h"
+#include "sprintf.h"
 
 struct user_settings global_settings;
 char rockboxdir[] = ROCKBOX_DIR;       /* config/font/data file directory */

apps/sound_menu.c

@@ -31,6 +31,7 @@
 #include "icons.h"
 #endif
 #include "lang.h"
+#include "sprintf.h"
 
 static char *fmt[] =
 {

apps/wps-display.c

@@ -40,6 +40,7 @@
 #include "mas.h"
 #include "lang.h"
 #include "powermgmt.h"
+#include "sprintf.h"
 
 #ifdef HAVE_LCD_BITMAP
 #include "icons.h"