sandbox: Move ulib_init_with_data() declaration to init.h

To avoid needing an #ifdef in the C code, move this sandbox-specific
declaration to the common init.h header.

Update ulib.c to include init.h to avoid warnings. Fix the ordering
while we are here.

Signed-off-by: Simon Glass <simon.glass@canonical.com>

lib/ulib/ulib.c

@@ -9,8 +9,9 @@
 #include <string.h>
 #include <version.h>
 #include <asm/global_data.h>
-#include <version_string.h>
+#include <init.h>
 #include <u-boot-lib.h>
+#include <version_string.h>
 
 /* Static storage for global data when using simplified API */
 static struct global_data static_gd;