[Hide DCK Device] Hide DCK BluetoothDevice from QS SysUI

Hide DCK device from Saved and Connected devices list.

Test: atest SystemUITests:com.android.systemui.qs.tiles.dialog.bluetooth.DeviceItemFactoryTest
Bug: 323298503
Bug: 324475542
Flag: ACONFIG com.android.settingslib.flags.enable_hide_exclusively_managed_bluetooth_device DEVELOPMENT
Change-Id: I828783ed7d53d9c0ef871b1697eebeb9c3cf7e8a
diff --git a/packages/SettingsLib/aconfig/settingslib.aconfig b/packages/SettingsLib/aconfig/settingslib.aconfig
index 6a1ee3a..54c5a14 100644
--- a/packages/SettingsLib/aconfig/settingslib.aconfig
+++ b/packages/SettingsLib/aconfig/settingslib.aconfig
@@ -43,4 +43,11 @@
   namespace: "pixel_cross_device_control"
   description: "Gates whether to enable LE audio private broadcast sharing via QR code"
   bug: "308368124"
-}
\ No newline at end of file
+}
+
+flag {
+  name: "enable_hide_exclusively_managed_bluetooth_device"
+  namespace: "dck_framework"
+  description: "Hide exclusively managed Bluetooth devices in BT settings menu."
+  bug: "324475542"
+}