tests: Bluetooth: restructure bsim_bt directory

This commit separates each test by layer level.

Obviously the tests will run the whole stack, but they should be separated
by which component/layer they intend on testing.

Signed-off-by: Jonathan Rico <jonathan.rico@nordicsemi.no>

tests/bluetooth/bsim/audio/test_scripts/mcs_mcc.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2020 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+
+SIMULATION_ID="mcs_mcc"
+VERBOSITY_LEVEL=2
+PROCESS_IDS=""; EXIT_CODE=0
+
+function Execute(){
+  if [ ! -f $1 ]; then
+    echo -e "  \e[91m`pwd`/`basename $1` cannot be found (did you forget to\
+ compile it?)\e[39m"
+    exit 1
+  fi
+  timeout 20 $@ & PROCESS_IDS="$PROCESS_IDS $!"
+}
+
+: "${BSIM_OUT_PATH:?BSIM_OUT_PATH must be defined}"
+
+#Give a default value to BOARD if it does not have one yet:
+BOARD="${BOARD:-nrf52_bsim}"
+
+cd ${BSIM_OUT_PATH}/bin
+
+printf "\n\n======== Running MCS  and MCC test =========\n\n"
+
+Execute ./bs_${BOARD}_tests_bluetooth_bsim_audio_prj_conf \
+  -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} -d=0 -testid=mcc -rs=46
+
+Execute ./bs_${BOARD}_tests_bluetooth_bsim_audio_prj_conf \
+  -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} -d=1 -testid=mcs -rs=23
+
+# Simulation time should be larger than the WAIT_TIME in common.h
+Execute ./bs_2G4_phy_v1 -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} \
+  -D=2 -sim_length=60e6 $@
+
+for PROCESS_ID in $PROCESS_IDS; do
+  wait $PROCESS_ID || let "EXIT_CODE=$?"
+done
+
+exit $EXIT_CODE #the last exit code != 0