avicii: sepolicy: Allow vendor.oneplus.hardware.camera@1.0-service to execute

* 04-07 08:43:32.216 10931 10931 W init    : type=1400 audit(0.0:20353):
avc: denied { execute } for
name="vendor.oneplus.hardware.camera@1.0-service" dev="dm-7" ino=167
scontext=u:r:init:s0 tcontext=u:object_r:vendor_file:s0 tclass=file
permissive=0

Change-Id: I3d1bdb7ba018354c97bd55b84112cf03beb3f1a2