Add linting workflow to GitHub Actions

Currently this just checks for correct Copyright and License headers but
in future we can expand to check other things.

.github/workflows/lint.yaml

@@ -0,0 +1,14 @@
+# SPDX-FileCopyrightText: Copyright 2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
+# SPDX-License-Identifier: BSD-3-Clause
+
+name: Linting Checks
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: REUSE Compliance Check
+      uses: fsfe/reuse-action@v1