mm/list_lru.c: Rename kvfree_rcu() to local variant

mm/list_lru.c: Rename kvfree_rcu() to local variant

Rename kvfree_rcu() function to the kvfree_rcu_local() one.
The purpose is to prevent a conflict of two same function
declarations. The kvfree_rcu() will be globally visible
what would lead to a build error. No functional change.

Cc: [email protected]
Cc: [email protected]
Cc: Andrew Morton <[email protected]>
Signed-off-by: Uladzislau Rezki (Sony) <[email protected]>
Reviewed-by: Joel Fernandes (Google) <[email protected]>
Signed-off-by: Joel Fernandes (Google) <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>