Rules in clients of NFC HAL due to the HAL running (or previously
running) in passthrough mode are now targeting hal_nfc. Domains which
are clients of NFC HAL are associated with hal_nfc only the the HAL
runs in passthrough mode. NFC HAL server domains are always associated
with hal_nfc and thus get these rules unconditionally.
This commit also moves the policy of nfc domain to private. The only
thing remaining in the public policy is the existence of this domain.
This is needed because there are references to this domain in public
and vendor policy.
Test: Open a URL in Chrome, NFC-tap Android to another Android and
observe that the same URL is opened in a web browser on the
destination device. Do the same reversing the roles of the two
Androids.
Test: Install an NFC reader app, tap a passive NFC tag with the
Android and observe that the app is displaying information about
the tag.
Test: No SELinux denials to do with NFC before and during and after
the above tests on sailfish, bullhead, and angler.
Bug: 34170079
Change-Id: I29fe43f63d64b286c28eb19a3a9fe4f630612226
