binder: initialize lru pages in mmap callback

Rather than repeatedly initializing some of the binder_lru_page members
during binder_alloc_new_buf(), perform this initialization just once in
binder_alloc_mmap_handler(), after the pages have been created.

Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20231201172212.1813387-19-cmllamas@google.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>