Revert "Move cardisplayproxyd to system_ext"

This reverts commit fc0b3da21f80072877f7e06a1a888706bcd2face.

Bug: 268128589
Test: Treehugger
Change-Id: I562b78d2f7550ee9e15be049f9db3fd1eeb491d8
diff --git a/private/file_contexts b/private/file_contexts
index 7432c2f..57fcdfb 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -379,6 +379,7 @@
 /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
+/system/bin/cardisplayproxyd     u:object_r:automotive_display_service_exec:s0
 /system/bin/evsmanagerd          u:object_r:evsmanagerd_exec:s0
 /system/bin/android\.automotive\.evs\.manager@1\.[0-9]+ u:object_r:evsmanagerd_exec:s0
 
@@ -496,7 +497,6 @@
 
 /(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)/bin/canhalconfigurator(-aidl)? u:object_r:canhalconfigurator_exec:s0
-/(system_ext|system/system_ext)/bin/cardisplayproxyd           u:object_r:automotive_display_service_exec:s0
 
 /(system_ext|system/system_ext)/lib(64)?(/.*)?      u:object_r:system_lib_file:s0