hal_*_default daemons whose policy is in common/device-agnostic policy
are provided by the vendor image (see vendor/file_contexts). Thus,
their policy should also reside in the vendor image, rather than in
the system image. This means their policy should live in the vendor
subdirectory of this project.

Test: Device boots and appears to work
Bug: 34135607
Bug: 34170079
Change-Id: I6613e43733e03d4a3d4726f849732d903e024016

All hals need to use hwbinder.

Test: no additional denials
Bug: 34180936
Change-Id: Ie92cdbd79fc75062c4afa4cda53cb57ccde7e370

This improves readability and consistency for HAL implementation
domains which have only one implementation.

Test: No change to policy according to sesearch
Test: No change to which types are associated with haldomain according to "sepolicy-analyze <sepolicy file> attribute haldomain"
Bug: 34180936
Change-Id: Ice599ea4971cdfbd8b835b1fd02ad1e14c7a0386

This marks all HAL domain implementations with the haldomain attribute
so that rules can be written which apply to all HAL implementations.

This follows the pattern used for appdomain, netdomain and
bluetoothdomain.

Test: No change to policy according to sesearch.
Bug: 34180936
Change-Id: I0cfe599b0d49feed36538503c226dfce41eb65f6

The service running the boot control HAL needs the permissions
provided by the boot_control_hal attribute. update_engine and
update_verifier still also need these permissions in order
to successfully call the new HAL in pass-through mode, but also
need permission to call the new service.

Bug: 31864052
Test: Built and confirmed no permission denials.
Change-Id: I2a6fdd5cf79b9e461d7cc14bd5b7abd6481ed911
Signed-off-by: Connor O'Brien <connoro@google.com>

This reverts commit 1f329465.

Bug: 32973182
Change-Id: Ic0277b38b0249710a4f1fc362e777f3880ff096b

Grant boot_control_hal permissions to the hal_boot service;
update_engine and update_verifier can call that service rather
than using those permissions themselves.

Bug: 31864052
Test: `bootctl set-active-boot-slot 1`
Change-Id: I5188bc32e7933d4a0f5135b3246df119d3523d69

Bug: 31864052
Test: Logging confirms service runs on boot
Merged-In: I41e9e5c45d2d42886cdf7ff6d364e9e6e3df1ff4
Change-Id: I41e9e5c45d2d42886cdf7ff6d364e9e6e3df1ff4
Signed-off-by: Connor O'Brien <connoro@google.com>