kitakami-common: sepolicy: Address sensors denial

10-25 08:30:21.309 W/sensors.qcom(16445): type=1400 audit(0.0:2170): avc: denied { search } for name="/" dev="mmcblk0p31" ino=2 scontext=u:r:sensors:s0 tcontext=u:object_r:unlabeled:s0 tclass=dir permissive=0

Change-Id: I66db4b32f8e872f8bf994d81d7ff6353b7ee6421