applications: nrf5340_audio: Increase rx configs for bidirectional

- Fixes bug where debug log for rx direction was not initialized
- Even though max decode is set to 2, only one streams is
  actually decoded, same as before.
- OCT-3456

Signed-off-by: Alexander Svensen <[email protected]>

Author: alexsven

applications/nrf5340_audio/unicast_client/overlay-unicast_client.conf

@@ -32,7 +32,9 @@ CONFIG_UTF8=y
 CONFIG_BT_CONTENT_CTRL_MEDIA=y
 
 CONFIG_LC3_ENC_CHAN_MAX=2
-CONFIG_LC3_DEC_CHAN_MAX=1
+CONFIG_LC3_DEC_CHAN_MAX=2
 CONFIG_AUDIO_ENCODE_CHANNELS_MAX=2
 CONFIG_MBEDTLS_ENABLE_HEAP=y
 CONFIG_MBEDTLS_HEAP_SIZE=2048
+CONFIG_BT_AUDIO_CONCURRENT_RX_STREAMS_MAX=2
+CONFIG_AUDIO_DECODE_CHANNELS_MAX=2