docs: modifications to license years for automated tests

Modified license years in few files for easier testing
Since updating license patch of correct years was submitted
in 2024, we have to add 2024 year in few files.

Fixes: 00bf142e ("docs: updating license years")
Signed-off-by: Sanjyot Vaidya <Sanjyot.Vaidya@arm.com>
Reviewed-by: Nathan Brown <nathan.brown@arm.com>

Change-Id: I193b5c878a9d8695b42578af835cf17a8db4e8ef