SELINUX: add /sys/fs/selinux mount point to put selinuxfs
SELINUX: add /sys/fs/selinux mount point to put selinuxfs

In the interest of keeping userspace from having to create new root
filesystems all the time, let's follow the lead of the other in-kernel
filesystems and provide a proper mount point for it in sysfs.

For selinuxfs, this mount point should be in /sys/fs/selinux/

Cc: Stephen Smalley <d6e1285e1c84d3d5885c2124fdacc780e9fc0a94@tycho.nsa.gov>
Cc: James Morris <10d11de3abc355eabe955bb734f0f8e71da56e16@namei.org>
Cc: Eric Paris <b0b36e3cd9ea4e5739ff430a3056fabf2fdb0376@parisplace.org>
Cc: Lennart Poettering <c0d1abc3b577daa023988e3290f0ebe31171f259@0pointer.de>
Cc: Daniel J Walsh <7800de746fd39599bc46177380ea6aede7e31e16@redhat.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@suse.de>
[include kobject.h - Eric Paris]
[use selinuxfs_obj throughout - Eric Paris]
Signed-off-by: Eric Paris <b0b36e3cd9ea4e5739ff430a3056fabf2fdb0376@redhat.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs