SELinux: Use custom ADB over network property

* Use a custom system property to trigger the real one, so we avoid
  running afoul of any SELinux CTS requirements.

Change-Id: If5e7a275f492631a673284408f1e430a12358380

prebuilt/common/etc/init.local.rc

@@ -139,6 +139,9 @@ service bugreport /system/bin/dumpstate -d -p -B \
     keycodes 114 115 116
 
 # adb over network
+on property:adb.network.port=*
+    setprop service.adb.tcp.port ${adb.network.port}
+
 on property:service.adb.tcp.port=5555
     stop adbd
     start adbd

sepolicy/adbd.te

@@ -1 +0,0 @@
-allow adbd adbtcp_prop:property_service set;

sepolicy/property_contexts

@@ -1,4 +1,4 @@
-service.adb.tcp.port          u:object_r:adbtcp_prop:s0
+adb.network.port              u:object_r:adbtcp_prop:s0
 recovery.perf.mode            u:object_r:recovery_prop:s0
 adb.secure                    u:object_r:recovery_prop:s0
 cm.userinit.active            u:object_r:userinit_prop:s0

sepolicy/shell.te

@@ -1 +0,0 @@
-allow shell adbtcp_prop:property_service set;