ANDROID: sdcardfs: use mount_nodev and fix a issue in sdcardfs_kill_sb

Use the VFS mount_nodev instead of customized mount_nodev_with_options
and fix generic_shutdown_super to kill_anon_super because of set_anon_super

Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Change-Id: Ibe46647aa2ce49d79291aa9d0295e9625cfccd80