tests/bsim/bt l2cap/stress: Be more silent

This test was way too verbose (produced a log over 65000 lines
long).
Let's mute it a bit. If the test fails, developers
can raise the log level as needed.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
diff --git a/tests/bsim/bluetooth/host/l2cap/stress/prj.conf b/tests/bsim/bluetooth/host/l2cap/stress/prj.conf
index a281277..fecd8ba 100644
--- a/tests/bsim/bluetooth/host/l2cap/stress/prj.conf
+++ b/tests/bsim/bluetooth/host/l2cap/stress/prj.conf
@@ -47,7 +47,7 @@
 CONFIG_ASSERT=y
 CONFIG_NET_BUF_POOL_USAGE=y
 
-CONFIG_BT_L2CAP_LOG_LEVEL_DBG=y
+# CONFIG_BT_L2CAP_LOG_LEVEL_DBG=y
 # CONFIG_BT_CONN_LOG_LEVEL_DBG=y
 CONFIG_LOG_THREAD_ID_PREFIX=y
 CONFIG_THREAD_NAME=y
diff --git a/tests/bsim/bluetooth/host/l2cap/stress/src/main.c b/tests/bsim/bluetooth/host/l2cap/stress/src/main.c
index 1eed057..b20dafe 100644
--- a/tests/bsim/bluetooth/host/l2cap/stress/src/main.c
+++ b/tests/bsim/bluetooth/host/l2cap/stress/src/main.c
@@ -11,7 +11,7 @@
 
 #define LOG_MODULE_NAME main
 #include <zephyr/logging/log.h>
-LOG_MODULE_REGISTER(LOG_MODULE_NAME, LOG_LEVEL_DBG);
+LOG_MODULE_REGISTER(LOG_MODULE_NAME, LOG_LEVEL_INF);
 
 CREATE_FLAG(is_connected);
 CREATE_FLAG(flag_l2cap_connected);