Fix selinux denials when applying updates in recovery.

These lines are copied from update_engine.te, and are needed to update
dynamic partitions in recovery.

Bug: 132943965
Test: sideload OTA on cuttlefish
Change-Id: Id03a658aac69b8d20fa7bb758530a4469c75cf9c
diff --git a/public/recovery.te b/public/recovery.te
index 12eadee..d5d16a2 100644
--- a/public/recovery.te
+++ b/public/recovery.te
@@ -138,6 +138,10 @@
   # This line seems suspect, as it should not really need to
   # set scheduling parameters for a kernel domain task.
   allow recovery kernel:process setsched;
+
+  # These are needed to update dynamic partitions in recovery.
+  r_dir_file(recovery, sysfs_dm)
+  allowxperm recovery super_block_device_type:blk_file ioctl { BLKIOMIN BLKALIGNOFF };
 ')
 
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