[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/Documentation/media/kapi/v4l2-rect.rst b/src/kernel/linux/v4.19/Documentation/media/kapi/v4l2-rect.rst
new file mode 100644
index 0000000..8df5067
--- /dev/null
+++ b/src/kernel/linux/v4.19/Documentation/media/kapi/v4l2-rect.rst
@@ -0,0 +1,4 @@
+V4L2 rect helper functions
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. kernel-doc:: include/media/v4l2-rect.h