FROMLIST: mm: multigenerational lru: Kconfig

Add configuration options for the multigenerational lru.

Signed-off-by: Yu Zhao <yuzhao@google.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
(am from https://lore.kernel.org/patchwork/patch/1478363/)

BUG=b:123039911
TEST=Built

Change-Id: Ic74ea07f8fb5f56e6904a1b80c3c286bc2911635
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/3132027


Tested-by: Yu Zhao <yuzhao@chromium.org>
Commit-Queue: Yu Zhao <yuzhao@chromium.org>
Reviewed-by: Alexandre Marciano Gimenez <raging@google.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>