tests: Add a CodeChecker config file

Create a file to be used in CI or locally that lists all enabled/disabled
checks.

Can be passed as a CMake argument or set as environment variable:
CODECHECKER_CONFIG_FILE=$ZEPHYR_BASE/tests/codechecker_config.yaml

Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>

.codechecker.yml

@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: Apache-2.0
+#
+# Copyright (c) 2024, Basalte bv
+
+analyzer:
+  # Start by disabling all
+  - --disable-all
+
+  # Enable the sensitive profile
+  - --enable=sensitive
+
+  # Disable unused cases
+  - --disable=boost
+  - --disable=mpi
+
+  # Many identifiers in zephyr start with _
+  - --disable=clang-diagnostic-reserved-identifier
+  - --disable=clang-diagnostic-reserved-macro-identifier
+
+  # Cleanup
+  - --clean