samples: bluetooth: Align hci buffer configuration

After 14b4e30cdf62b8dda157986e4b2299e673125c72, the host validates
that the ISO TX buffer count matches the HCI tx buffer count reported
by the controller.

This commit ensures they are aligned to avoid printing a warning.
Finding a better way of aligning them will be done separately.

a9f4b00 had handled it for nrf53
net core.

Signed-off-by: Ilhan Ates <[email protected]>

Author: ilhanates

samples/bluetooth/iso_time_sync/prj.conf

@@ -15,6 +15,7 @@ CONFIG_BT_CTLR_SDC_PERIPHERAL_COUNT=1
 
 CONFIG_BT_ISO_MAX_CHAN=4
 CONFIG_BT_ISO_TX_BUF_COUNT=4
+CONFIG_BT_CTLR_SDC_ISO_TX_HCI_BUFFER_COUNT=4
 CONFIG_BT_CTLR_ADV_ISO_STREAM_COUNT=4
 CONFIG_BT_CTLR_SYNC_ISO_STREAM_COUNT=4
 CONFIG_BT_CTLR_CONN_ISO_STREAMS=4