StaticKCM: Add layout_change to Wayland extension

This change is already reviewed on Chrome side
https://crrev.com/c/1411353 and this CL is just syncing the XML between
Android side and Chrome side.

See the Chrome side review for the detail.

Test: None
Bug: 122704772
Change-Id: Icd235f5186e5da7e1368c23d5fc89f9509779831
(cherry picked from commit 4b96ce2df4e0742fc40d4869bbb1a9e8864cd380)