fuse: fix wrong assignment of ->flags in fuse_send_init()

commit 9446385f05c9af25fed53dbed3cc75763730be52 upstream.

FUSE_HAS_IOCTL_DIR should be assigned to ->flags, it may be a typo.

Signed-off-by: Wei Fang <fangwei1@huawei.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Fixes: 69fe05c9 ("fuse: add missing INIT flags")
Cc: <stable@vger.kernel.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
[@nathanchance: fixed conflicts]
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>