sepolicy: recovery: Fix the volume manager blkid.tab denial

 * denied  { link } for  pid=573 comm="recovery"
    name="vold_blkid.tab" dev="tmpfs" ino=20425
    scontext=u:r:recovery:s0 tcontext=u:object_r:tmpfs:s0
    tclass=file

Change-Id: I0b3e47dd00c5a32261691f51838a8d9af9778faa