tomoyo: use true for bool variable

Fixes coccicheck warning:

security/tomoyo/common.c:1028:2-13: WARNING: Assignment of 0/1 to bool variable
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>

security/tomoyo/common.c

@@ -1025,7 +1025,7 @@ static bool tomoyo_select_domain(struct tomoyo_io_buffer *head,
 	if (domain)
 		head->r.domain = &domain->list;
 	else
-		head->r.eof = 1;
+		head->r.eof = true;
 	tomoyo_io_printf(head, "# select %s\n", data);
 	if (domain && domain->is_deleted)
 		tomoyo_io_printf(head, "# This is a deleted domain.\n");