Bluetooth: Audio: Shell: Add additional controller configs to audio.conf

The configuration file is mostly tested for the nRF53 series
where the controller configuration is usually from the
hci_ipc sample.

This means that the existing audio.conf before this commit
has not really been tested for audio, and were missing a few
configurations to make it work properly.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>

tests/bluetooth/shell/audio.conf

diff --git a/tests/bluetooth/shell/audio.conf b/tests/bluetooth/shell/audio.conf
index d28c311..29642e9 100644
--- a/tests/bluetooth/shell/audio.conf
+++ b/tests/bluetooth/shell/audio.conf
@@ -216,3 +216,23 @@
 CONFIG_BT_CAP_COMMON_LOG_LEVEL_DBG=y
 CONFIG_BT_TMAP_LOG_LEVEL_DBG=y
 CONFIG_BT_GMAP_LOG_LEVEL_DBG=y
+
+# Controller settings
+CONFIG_BT_CTLR_DATA_LENGTH_MAX=251
+
+# Support having both a connectable and a non-connectable set
+CONFIG_BT_CTLR_ADV_SET=2
+CONFIG_BT_CTLR_ADV_AUX_SET=2
+CONFIG_BT_CTLR_ADV_SYNC_SET=2
+CONFIG_BT_CTLR_ADV_DATA_LEN_MAX=191
+CONFIG_BT_CTLR_ADV_DATA_BUF_MAX=6
+
+CONFIG_BT_CTLR_SCAN_DATA_LEN_MAX=1650
+
+# Match the number of broadcast streams supported in BAP
+CONFIG_BT_CTLR_SYNC_ISO_STREAM_MAX=4
+CONFIG_BT_CTLR_ADV_ISO_STREAM_MAX=4
+
+# Match the number of unicast streams supported in BAP
+CONFIG_BT_CTLR_ISOAL_SOURCES=2
+CONFIG_BT_CTLR_ISOAL_SINKS=2