Update su request process

Due to changes in ec3705f2ed, the app can
no longer communicate with the dameon through a socket opened on the
daemon side due to SELinux restrictions. The workaround here is to have
the daemon decide a socket name, send it to the app, have the app create
the socket server, then finally the daemon connects to the app through
the socket.

app/src/main/java/com/topjohnwu/magisk/utils/DiffObservableList.kt

@@ -86,8 +86,7 @@ open class DiffObservableList<T>(
     @MainThread
     fun update(newItems: List<T>) {
         val diffResult = doCalculateDiff(list, newItems)
-        list = newItems.toMutableList()
-        diffResult.dispatchUpdatesTo(listCallback)
+        update(newItems, diffResult)
     }
 
     override fun addOnListChangedCallback(listener: ObservableList.OnListChangedCallback<out ObservableList<T>>) {