1. Import pending patch to fix ramips/mt7621 64MB targets.
2. Do not enable CONFIG_PAGE_POOL_STATS by default.
Signed-off-by: Danila Romanov <pervokur@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry picked from commit 15887235c1e3b732d4c8e14afac253d00a7bfb36)