sandbox: Fix set_working_fdt_addr users

When running sandbox with the new pointer sanitization we just recently
introduced, we're running into a case with FIT images where we end up
interpreting pointers as addresses.

What happened is that most callers of set_working_fdt_addr() simply
convert pointers into addresses without taking into account that they
might be 2 separate address spaces. Fix the callers up to map their
pointers into addresses.

This makes sandbox tests pass for me again.

Signed-off-by: Alexander Graf <agraf@suse.de>

common/bootm.c

@@ -262,7 +262,7 @@ int bootm_find_images(int flag, int argc, char * const argv[])
 		puts("Could not find a valid device tree\n");
 		return 1;
 	}
-	set_working_fdt_addr((ulong)images.ft_addr);
+	set_working_fdt_addr(map_to_sysmem(images.ft_addr));
 #endif
 
 #if IMAGE_ENABLE_FIT

common/image-fdt.c

@@ -193,7 +193,7 @@ int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size)
 	*of_flat_tree = of_start;
 	*of_size = of_len;
 
-	set_working_fdt_addr((ulong)*of_flat_tree);
+	set_working_fdt_addr(map_to_sysmem(*of_flat_tree));
 	return 0;
 
 error: