rust: bindings: Add resource_size wrapper

TODO: This isn't abstracted properly yet

Signed-off-by: Asahi Lina <lina@asahilina.net>

Author: hoshinolina

rust/helpers/helpers.c

@@ -16,6 +16,7 @@
 #include "err.c"
 #include "io.c"
 #include "iomem.c"
+#include "ioport.c"
 #include "kunit.c"
 #include "lockdep.c"
 #include "mutex.c"

rust/helpers/ioport.c

@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/ioport.h>
+
+resource_size_t rust_helper_resource_size(const struct resource *res)
+{
+	return resource_size(res);
+}