ANDROID: GKI: export symbols to modify lru stats

Export the symbols below to modify LRU state:
  __mod_lruvec_state
  mem_cgroup_update_lru_size

Bug: 263062559
Bug: 260389869
Signed-off-by: Lianjun Huang <huanglianjun@xiaomi.corp-partner.google.com>
Change-Id: I7804b30282b865a004f5a7193537aea688901043
(cherry picked from commit 4ff88497)