Update remote-shell-unstable-v1.xml.

This CL includes changes from
- crrev.com/c/1050051: Fix indentation in remote-shell-unstable-v1.xml.
- crrev.com/c/1055030: Increase zcr_remote_shell_v1 version and
zcr_notification_surface_v1 version to 16.

Bug: 79452093
Test: m
Change-Id: I026850e21888c101c523768289a2e805fa7625b2
1 file changed