Run odrefresh in composd

This is far from finished, but it is at least started. This currently
fails when pvm_exec tries to create a vsock; instead it will need to
request one from composd.

Test: adb shell apex/com.android.compos/bin/composd_cmd
Bug: 186126194
Change-Id: Ic193ddd3835be3daf70b15e78c56c0ccb98e7a1f
diff --git a/compos/apex/Android.bp b/compos/apex/Android.bp
index ada0976..547fd44 100644
--- a/compos/apex/Android.bp
+++ b/compos/apex/Android.bp
@@ -41,6 +41,7 @@
         "compos_key_cmd",
         "compos_verify_key",
         "composd",
+        "composd_cmd",
         "compsvc",
         "pvm_exec",
     ],
diff --git a/compos/apex/composd.rc b/compos/apex/composd.rc
index 099a346..3e2efb1 100644
--- a/compos/apex/composd.rc
+++ b/compos/apex/composd.rc
@@ -14,7 +14,7 @@
 
 service composd /apex/com.android.compos/bin/composd
     class main
-    user system
+    user root
     group system
     interface aidl android.system.composd
     disabled