recovery: clean up audit logspam

avc: granted { search } scontext=u:r:recovery:s0 tcontext=u:object_r:cache_file:s0 tclass=dir
avc: granted { getattr } scontext=u:r:recovery:s0 tcontext=u:object_r:rootfs:s0 tclass=file
avc: granted { read } scontext=u:r:recovery:s0 tcontext=u:object_r:rootfs:s0 tclass=file
avc: granted { read open } scontext=u:r:recovery:s0 tcontext=u:object_r:rootfs:s0 tclass=file
avc: granted { read } scontext=u:r:recovery:s0 tcontext=u:object_r:sysfs:s0 tclass=file
avc: granted { read open } scontext=u:r:recovery:s0 tcontext=u:object_r:sysfs:s0 tclass=file
avc: granted { search } scontext=u:r:recovery:s0 tcontext=u:object_r:tmpfs:s0 tclass=dir

Fixes: 62619253
Test: policy builds, no more "granted" messages in dmesg for recovery.
Change-Id: I3f6d8ceee80307a01a8fd40cb4f8362a9825b1a3