Update preferred transport when HID and LeAudio profile are connected

Bug: 330581926
Test: atest CachedBluetoothDeviceTest
Change-Id: Ib7d42a74c4d174ee61efd2fa6eb7eafd963f9c40
diff --git a/packages/SettingsLib/aconfig/settingslib.aconfig b/packages/SettingsLib/aconfig/settingslib.aconfig
index 54c5a14..a6d6eee 100644
--- a/packages/SettingsLib/aconfig/settingslib.aconfig
+++ b/packages/SettingsLib/aconfig/settingslib.aconfig
@@ -51,3 +51,13 @@
   description: "Hide exclusively managed Bluetooth devices in BT settings menu."
   bug: "324475542"
 }
+
+flag {
+    name: "enable_set_preferred_transport_for_le_audio_device"
+    namespace: "bluetooth"
+    description: "Enable setting preferred transport for Le Audio device"
+    bug: "330581926"
+    metadata {
+        purpose: PURPOSE_BUGFIX
+    }
+}