Add flag to deprecate STREAM_BLUETOOTH_SCO

Flag: android.media.audio.deprecate_stream_bt_sco
Test: make
Bug: 376756660
Change-Id: Ia2133445bcaa094708039697f9033f3c7fd8393c
diff --git a/media/audio/aconfig/audio_framework.aconfig b/media/audio/aconfig/audio_framework.aconfig
index f6b84e1..c6479d0 100644
--- a/media/audio/aconfig/audio_framework.aconfig
+++ b/media/audio/aconfig/audio_framework.aconfig
@@ -33,6 +33,14 @@
 }
 
 flag {
+    name: "deprecate_stream_bt_sco"
+    namespace: "media_audio"
+    description: "Deprecate STREAM_BLUETOOTH_SCO"
+    is_exported: true
+    bug: "376756660"
+}
+
+flag {
     name: "enable_multichannel_group_device"
     namespace: "media_audio"
     description: