init.rc: set up init.rc for aconfigd to initialize mainline storage

aconfigd-mainline-init is the service target to initialize mainline
storage files. aconfigd is the service target to start aconfigd socket
for incoming messages.

Bug: b/312444587
Test: m and avd
Change-Id: Ic8052eaf933501da3371812c482ad816ec353b27
diff --git a/rootdir/init.rc b/rootdir/init.rc
index f7f0cc3..e8b737d 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -640,8 +640,7 @@
     mkdir /metadata/aconfig/boot 0775 root system
 
     mkdir /metadata/aconfig_test_missions 0775 root system
-    exec_start aconfigd-init
-    start aconfigd
+    exec_start aconfigd-platform-init
 
 on late-fs
     # Ensure that tracefs has the correct permissions.
@@ -1031,6 +1030,8 @@
     # Wait for apexd to finish activating APEXes before starting more processes.
     wait_for_prop apexd.status activated
     perform_apex_config
+    exec_start aconfigd-mainline-init
+    start aconfigd
 
     # Create directories for boot animation.
     mkdir /data/misc/bootanim 0755 system system