audio: add feature flag for new headset profile and SCO audio management

Add flag sco_managed_by_audio to enable the new mechanism of headset
profile management and SCO audio link activation in the audio framework.

Bug: 265057196
Test: make
Change-Id: Ic348f2ef634a36bdaef7ff31e08722f83547f9ce
Merged-In: Ic348f2ef634a36bdaef7ff31e08722f83547f9ce
diff --git a/media/audio/aconfig/audio_framework.aconfig b/media/audio/aconfig/audio_framework.aconfig
index 294e67d..7191e20 100644
--- a/media/audio/aconfig/audio_framework.aconfig
+++ b/media/audio/aconfig/audio_framework.aconfig
@@ -44,3 +44,12 @@
     bug: "298463873"
 }
 
+flag {
+    name: "sco_managed_by_audio"
+    namespace: "media_audio"
+    description: "\
+Enable new implementation of headset profile device connection and\
+SCO audio activation."
+    bug: "265057196"
+}
+