meta-arm scarthgap update

meta-arm has released an updated scarthgap support tag, 5.0.3.  The tag 
contains 2 patches from between 08 Sep 2025 and 05 Nov 2025.

Per an external request, we have duplicated all existing "numbers only" 
tags (i.e., 5.0.3) with a yocto-x.y.z tag (i.e., yocto-5.0.3).

Thanks,
Jon