Fix sepolicy for Gatekeeper HAL

This patch fixes Gatekeeper HAL rules.

Bug: 34260418
Test: Device boots with gatekeeper_hal using hwbinder and
      gatekeeperd does not fall back to software.
Change-Id: I6aaacb08faaa7a90506ab569425dc525334c8171

public/gatekeeperd.te

@@ -15,7 +15,6 @@ allow gatekeeperd system_file:dir r_dir_perms;
 
 ### Rules needed when Gatekeeper HAL runs outside of gatekeeperd process.
 ### These rules should eventually be granted only when needed.
-hwbinder_use(gatekeeperd)
 hal_client_domain(gatekeeperd, hal_gatekeeper)
 ###
 

public/hal_gatekeeper.te

-# call into gatekeeperd process (callbacks)
-# TODO: This rules is unlikely to be needed because Gatekeeper HIDL
-# says there are no callbacks
-binder_call(hal_gatekeeper, gatekeeperd)
+binder_call(hal_gatekeeper_client, hal_gatekeeper_server)
 
 # TEE access.
 allow hal_gatekeeper tee_device:chr_file rw_file_perms;