Arm backend: Initialize basicConfig for logging (#15674)

In a previous patch, the basicConfig for the logging was removed which
led to log-prints not being displayed when running the tests. This patch
adds it back, but without a default log-level.

Signed-off-by: Oscar Andersson <oscar.andersson@arm.com>

Author: oscarandersson8218

backends/arm/test/conftest.py

@@ -3,8 +3,10 @@
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
 
+import logging
 import os
 import random
+import sys
 from typing import Any
 
 import pytest
@@ -27,6 +29,8 @@ def pytest_configure(config):
     if config.option.arm_run_tosa_version:
         pytest._test_options["tosa_version"] = config.option.arm_run_tosa_version
 
+    logging.basicConfig(stream=sys.stdout)
+
 
 def pytest_collection_modifyitems(config, items):
     pass