apply 'fs_bpf_tethering' label to /sys/fs/bpf/tethering

We want to label /sys/fs/bpf/tethering/... with a new label distinct
from /sys/fs/bpf, as this will allow locking down the programs/maps
tighter then is currently possible with the existing system.

These programs and maps are provided via the tethering mainline module,
and as such their number, names, key/value types, etc. are all prone to
be changed by a tethering mainline module update.

Test: atest, TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ifc4108d76a1106a936b941a3dda1abc5a65c05b0
6 files changed