non_plat: Label /data/vendor/thh and allow tee to manage it

TEE stores its file in /data/vendor/thh/. Allow it required permissions
to do so.

Denials observed without this change:
12-28 16:42:11.556   416   416 I teei_daemon: type=1400 audit(0.0:394): avc: denied { open } for path="/data/vendor/thh/7778c03fc30c4dd0a319ea29643d4d4b." dev="sdc46" ino=2490455 scontext=u:r:tee:s0 tcontext=u:object_r:vendor_data_file:s0 tclass=dir permissive=1

Test: Boot and notice that denials have resolved

Signed-off-by: Aayush Gupta <[email protected]>
Change-Id: I1a608ebac628c8ce9c35ece1566e049236321a4b