Add defaultRetailDemo config for the default holder of Retail Demo role.

Security approved for design: go/retail-demo-role-fr

Bug: 274132354
Change-Id: I214c998bda0df946879ea84aef51b6b291c3e9fe
Test: manual

core/api/system-current.txt

@@ -455,6 +455,7 @@ package android {
     field public static final int config_defaultCallScreening = 17039398; // 0x1040026
     field public static final int config_defaultDialer = 17039395; // 0x1040023
     field public static final int config_defaultNotes = 17039429; // 0x1040045
+    field public static final int config_defaultRetailDemo;
     field public static final int config_defaultSms = 17039396; // 0x1040024
     field public static final int config_devicePolicyManagement = 17039421; // 0x104003d
     field public static final int config_feedbackIntentExtraKey = 17039391; // 0x104001f

core/res/res/values/config.xml

@@ -2306,6 +2306,8 @@
     <string name="config_systemFinancedDeviceController" translatable="false">com.android.devicelockcontroller</string>
     <!-- The name of the package that will hold the call streaming role. -->
     <string name="config_systemCallStreaming" translatable="false"></string>
+    <!-- The name of the package that will hold the default retail demo role. -->
+    <string name="config_defaultRetailDemo" translatable="false"></string>
 
     <!-- The component name of the wear service class that will be started by the system server. -->
     <string name="config_wearServiceComponent" translatable="false"></string>

core/res/res/values/public-staging.xml

@@ -119,6 +119,8 @@
   </staging-public-group>
 
   <staging-public-group type="string" first-id="0x01ba0000">
+    <!-- @hide @SystemApi -->
+    <public name="config_defaultRetailDemo" />
   </staging-public-group>
 
   <staging-public-group type="dimen" first-id="0x01b90000">