Fix SELinux warning when passing fuse FD from system server.

Before applying the CL, Android shows the following error when passing
FD of /dev/fuse.

> Binder_2: type=1400 audit(0.0:38): avc: denied { getattr } for
> path="/dev/fuse" dev="tmpfs" ino=9300 scontext=u:r:system_server:s0
> tcontext=u:object_r:fuse_device:s0 tclass=chr_file permissive=0

Change-Id: I59dec819d79d4e2e1a8e42523b6f521481cb2afd
1 file changed