kasan: hw_tags: Use str_on_off() helper in kasan_init_hw_tags()

kasan: hw_tags: Use str_on_off() helper in kasan_init_hw_tags()

Remove hard-coded strings by using the str_on_off() helper function.

Link: https://lkml.kernel.org/r/20250114150935.780869-2-thorsten.blum@linux.dev
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Suggested-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>