flag: add leaudio_report_broadcast_ac_to_hal

Report broacast audio config to HAL

Bug: 321168976
Bug: 339121774
Test: atest --host bluetooth_test_broadcaster
Change-Id: I02778ed7ac5d756d89fe6d6538e2f806b7e857bc
diff --git a/bluetooth/audio/flags/btaudiohal.aconfig b/bluetooth/audio/flags/btaudiohal.aconfig
index 4c1500a..13e2116 100644
--- a/bluetooth/audio/flags/btaudiohal.aconfig
+++ b/bluetooth/audio/flags/btaudiohal.aconfig
@@ -7,3 +7,10 @@
     description: "Flag for DSA Over LEA"
     bug: "270987427"
 }
+
+flag {
+    name: "leaudio_report_broadcast_ac_to_hal"
+    namespace: "pixel_bluetooth"
+    description: "Flag for reporting lea broadcast audio config to HAL"
+    bug: "321168976"
+}
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