Modify the automotive display service file context

The automotive display service is moved to /system_ext partition.

Bug: 246656948
Test: Build selinux policy for aosp_cf_x86_64_only_auto target.
      > lunch aosp_cf_x86_64_only_auto-userdebug
      > m -j selinux_policy
Change-Id: If822e54aa99053c1aaee9f41d067860ea965c2f2
diff --git a/private/file_contexts b/private/file_contexts
index 632e069..9d26b88 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -373,7 +373,6 @@
 /system/bin/simpleperf           u:object_r:simpleperf_exec:s0
 /system/bin/simpleperf_app_runner    u:object_r:simpleperf_app_runner_exec:s0
 /system/bin/migrate_legacy_obb_data u:object_r:migrate_legacy_obb_data_exec:s0
-/system/bin/android\.frameworks\.automotive\.display@1\.0-service u:object_r:automotive_display_service_exec:s0
 /system/bin/snapuserd            u:object_r:snapuserd_exec:s0
 /system/bin/odsign               u:object_r:odsign_exec:s0
 /system/bin/vehicle_binding_util     u:object_r:vehicle_binding_util_exec:s0
@@ -493,6 +492,8 @@
 /(system_ext|system/system_ext)/bin/hidl_lazy_test_server    u:object_r:hidl_lazy_test_server_exec:s0
 /(system_ext|system/system_ext)/bin/hidl_lazy_cb_test_server u:object_r:hidl_lazy_test_server_exec:s0
 
+/(system_ext|system/system_ext)/bin/android\.frameworks\.automotive\.display@1\.0-service u:object_r:automotive_display_service_exec:s0
+
 /(system_ext|system/system_ext)/lib(64)?(/.*)?      u:object_r:system_lib_file:s0
 
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