Complete Yocto mirror with license table for TQMa6UL (2038-compliance)

- 264 license table entries with exact download URLs (224/264 resolved)
- Complete sources/ directory with all BitBake recipes
- Build configuration: tqma6ul-multi-mba6ulx, spaetzle (musl)
- Full traceability for Softwarefreigabeantrag
- GCC 13.4.0, Linux 6.6.102, U-Boot 2023.04, musl 1.2.4
- License distribution: GPL-2.0 (24), MIT (23), GPL-2.0+ (18), BSD-3 (16)

sources/poky/meta/lib/oeqa/sdk/buildtools-docs-cases/README

@@ -0,0 +1,2 @@
+These test cases are used by build-docs-tarball, and are not used by the testsdk
+class.

sources/poky/meta/lib/oeqa/sdk/buildtools-docs-cases/build.py

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+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+import tempfile
+from oeqa.sdk.case import OESDKTestCase
+from oeqa.utils.subprocesstweak import errors_have_output
+errors_have_output()
+
+class BuildTests(OESDKTestCase):
+    """
+    Verify that our docs can build using our docs tools tarball.
+    """
+    def test_docs_build(self):
+        with tempfile.TemporaryDirectory(prefix='docs-tarball-build-', dir=self.tc.sdk_dir) as testdir:
+            self._run('git clone git://git.yoctoproject.org/yocto-docs %s' % testdir)
+            self._run('cd %s/documentation && make html' % testdir)