TOMOYO: Remove tomoyo_policy_memory_lock spinlock.

tomoyo_policy_lock mutex already protects it.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>

diff --cc security/tomoyo/common.h
Simple merge

diff --cc security/tomoyo/gc.c
Simple merge

diff --cc security/tomoyo/memory.c
Simple merge