Apply the workaround for the CIS->SCO handover

Set the system property persist.bluetooth.leaudio.notify.idle.during.call
to true to receive the notification when LeAudio group turned idle

Bug: 244524929
Bug: 244391698
Test: Switch LE Audio device to HFP device during phone call, and make sure the HFP device can hear sound.
Change-Id: I0a0ad4ef97e61deb528c6f8180317bda8b2512be

bluetooth/qti_default.mk

@@ -36,6 +36,12 @@ PRODUCT_PRODUCT_PROPERTIES += \
 	persist.bluetooth.leaudio_offload.disabled=false \
 	ro.vendor.audio_hal.ble_use_stream_id=true
 
+# Bluetooth LE Audio CIS handover to SCO
+# Set the property only if the controller doesn't support CIS and SCO
+# simultaneously. More details in b/242908683.
+PRODUCT_PRODUCT_PROPERTIES += \
+	persist.bluetooth.leaudio.notify.idle.during.call=true
+
 # LE Auido Offload Capabilities setting
 PRODUCT_COPY_FILES += \
 	device/google/lynx/bluetooth/lynx/le_audio_codec_capabilities.xml:$(TARGET_COPY_OUT_VENDOR)/etc/le_audio_codec_capabilities.xml