[Audiosharing] Impl the switch audio sharing dialog.

Show the dialog when a third eligible remote device connected during the
sharing session.

Flagged with enable_le_audio_sharing

Bug: 305620450
Test: Manual
Change-Id: Ib6627b68ef3d70305e9136e09a079bb53a459b85

res/layout/dialog_audio_sharing_disconnect.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2023 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="24dp"
+    android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/share_audio_disconnect_description"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textAlignment="center"
+        android:layout_gravity="center"/>
+
+    <com.android.internal.widget.RecyclerView
+        android:visibility="visible"
+        android:id="@+id/device_btn_list"
+        android:nestedScrollingEnabled="false"
+        android:overScrollMode="never"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"/>
+
+    <Button
+        android:id="@+id/cancel_btn"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:text="@string/cancel"/>
+</LinearLayout>