release_notes: fix broken link to upstream documentation on QEMU support

Things got moved around due to all the documentation patches that went
in for 5.17.
All the other links seem fine, just this one needed updating.

Change-Id: I5fb62152b899845d87e6385299c21409825d869c
Signed-off-by: Daniel Latypov <dlatypov@google.com>
diff --git a/release_notes.rst b/release_notes.rst
index 2f03bcf..58dfd54 100644
--- a/release_notes.rst
+++ b/release_notes.rst
@@ -112,7 +112,7 @@
 ====
 
 - ``kunit.py`` can run tests on non-UML architectures (using QEMU), `docs
-  <https://www.kernel.org/doc/html/latest/dev-tools/kunit/usage.html#running-existing-kunit-tests-on-non-uml-architectures>`__
+  <https://www.kernel.org/doc/html/latest/dev-tools/kunit/kunit-tool.html#running-tests-on-qemu>`__
 - It's now possible to generate code coverage reports when using UML, `docs
   <https://www.kernel.org/doc/html/latest/dev-tools/kunit/running_tips.html#generating-code-coverage-reports-under-uml>`__
 - Tests can call ``kunit_skip()`` to bail out and mark a test as "SKIPPED"