tomoyo: avoid unneeded creation of builtin-policy.h

When CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING=y,
builtin-policy.h is unneeded.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>

security/tomoyo/Makefile

@@ -13,4 +13,6 @@ quiet_cmd_policy  = POLICY  $@
 $(obj)/builtin-policy.h: $(wildcard $(obj)/policy/*.conf $(srctree)/$(src)/policy/*.conf.default) FORCE
 	$(call if_changed,policy)
 
+ifndef CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING
 $(obj)/common.o: $(obj)/builtin-policy.h
+endif