leaudio: Add support for Mute/Unmute

Bug: 231580214
Test: atest --host bluetooth_vc_test
Sponsor: @jpawlowski
Change-Id: Ib894ab01916d7eb989db6a0c28b79b321dd82ad6
(cherry picked from commit 636dc13c93a5d18589b010afe7e105c550eab17e)
diff --git a/system/bta/Android.bp b/system/bta/Android.bp
index fb40322..146b821 100644
--- a/system/bta/Android.bp
+++ b/system/bta/Android.bp
@@ -400,6 +400,7 @@
         "packages/modules/Bluetooth/system",
         "packages/modules/Bluetooth/system/bta/include",
         "packages/modules/Bluetooth/system/bta/test/common",
+        "packages/modules/Bluetooth/system/gd",
         "packages/modules/Bluetooth/system/stack/include",
     ],
     srcs : [