These 'struct kobj_type' are not modified. They are only used in
kobject_init() which takes a 'const struct kobj_type *ktype'
parameter.
Constifying these structure and moving them to a read-only
section (from data to text), and can increase over all security.
```
[Before]
text data bss dec hex filename
10330 1908 20 12258 2fe2 drivers/uio/uio.o
[After]
text data bss dec hex filename
10458 1844 20 12322 3022 drivers/uio/uio.o
```
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Link: https://lore.kernel.org/r/20240904012200.2010916-1-lihongbo22@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
89ec686a17