Update Darwin CMake prebuilt to 3.22.1
Fusion2: http://fusion2/610fb8e3-5633-41a6-b50b-ed5819f55cd6
GCS path: gs://ndk-kokoro-release-artifacts/prod/ndk/cmake/darwin_release/3/20211215-131219
Prebuilt updated using: ndk/scripts/update_kokoro_prebuilts.py
Test: Treehugger, Kokoro presubmit
Bug: http://b/213946898
Change-Id: Icbb6d90cad49dbe67f168075508872b1704d9f61
diff --git a/share/cmake-3.22/Help/prop_tgt/VS_IOT_STARTUP_TASK.rst b/share/cmake-3.22/Help/prop_tgt/VS_IOT_STARTUP_TASK.rst
new file mode 100644
index 0000000..259055d
--- /dev/null
+++ b/share/cmake-3.22/Help/prop_tgt/VS_IOT_STARTUP_TASK.rst
@@ -0,0 +1,8 @@
+VS_IOT_STARTUP_TASK
+-------------------
+
+.. versionadded:: 3.4
+
+Visual Studio Windows 10 IoT Continuous Background Task
+
+Specifies that the target should be compiled as a Continuous Background Task library.