Support Resume on Reboot

When an OTA is downloaded, the RecoverySystem can be triggered to store
the user's lock screen knowledge factor in a secure way using the
IRebootEscrow HAL. This will allow the credential encrypted (CE)
storage, keymaster credentials, and possibly others to be unlocked when
the device reboots after an OTA.

Bug: 63928581
Test: atest VtsHalRebootEscrowTargetTest
Change-Id: I32881c82d22f9b1f83e5fba6495c6de4fde14596
diff --git a/vendor/google/file_contexts b/vendor/google/file_contexts
index 70c5fd9..2a31497 100644
--- a/vendor/google/file_contexts
+++ b/vendor/google/file_contexts
@@ -3,6 +3,7 @@
 /dev/ab-dram                                                                          u:object_r:airbrush_device:s0
 /dev/abc-pcie-dma                                                                     u:object_r:airbrush_device:s0
 /dev/abc-pcie-tpu_0                                                                   u:object_r:abc_tpu_device:s0
+/dev/access-kregistry                                                                 u:object_r:rebootescrow_device:s0
 /dev/access-metadata                                                                  u:object_r:ramoops_device:s0
 /dev/access-ramoops                                                                   u:object_r:ramoops_device:s0
 /dev/block/zram0                                                                      u:object_r:swap_block_device:s0
@@ -34,6 +35,7 @@
 /vendor/bin/hw/android\.hardware\.oemlock@1\.0-service\.citadel                       u:object_r:hal_oemlock_citadel_exec:s0
 /vendor/bin/hw/android\.hardware\.power\.stats@1\.0-service\.pixel                    u:object_r:hal_power_stats_default_exec:s0
 /vendor/bin/hw/android\.hardware\.power@1\.3-service\.pixel-libperfmgr                u:object_r:hal_power_default_exec:s0
+/vendor/bin/hw/android\.hardware\.rebootescrow-service\.default                       u:object_r:hal_rebootescrow_default_exec:s0
 /vendor/bin/hw/android\.hardware\.secure_element@1\.0-service\.st                     u:object_r:hal_secure_element_default_exec:s0
 /vendor/bin/hw/android\.hardware\.thermal@2\.0-service\.pixel                         u:object_r:hal_thermal_default_exec:s0
 /vendor/bin/hw/android\.hardware\.usb@1\.2-service\.coral                             u:object_r:hal_usb_impl_exec:s0