axolotl: Re-enable bluetooth AAC frame control

This prop was removed while switching to the AOSP BT stack,
which seems to cause issues with some AAC headphones.

Fixes: https://gitlab.com/LineageOS/issues/android/-/issues/5381
Change-Id: I384df444be353475458ab156e4ec09542e23388a
diff --git a/vendor.prop b/vendor.prop
index ae0d04a..e63bfc3 100644
--- a/vendor.prop
+++ b/vendor.prop
@@ -101,6 +101,7 @@
 bluetooth.profile.pbap.server.enabled?=true
 bluetooth.profile.sap.server.enabled?=true
 persist.bluetooth.a2dp_offload.disabled=false
+persist.vendor.bt.aac_frm_ctl.enabled=true
 persist.vendor.qcom.bluetooth.a2dp_offload_cap=sbc-aac-aptx-aptxhd-ldac
 persist.vendor.qcom.bluetooth.aac_frm_ctl.enabled=true
 ro.bluetooth.a2dp_offload.supported=true