Integration 2026 week 06

* !3690 [FHI72] Support large DU delay profiles in the xran F, and include ProtO-RU emulator designed to run 7.2 with an USRP
* !3887 Update RHEL UBI image source to `registry.redhat.io`
* !3882 Change Aerial to pack directly in nvIPC message buffer
* !3895 CI: Ensure OAI-FLEXRIC-RAN-Integration-Test pipeline always uses latest commit for non-MR builds
* !3873 Ensure noise power is non-zero
* !3889 Enable imscope for split7.2
* !3801 Resolve "7.2 split ru_thread slot miss
* !3898 Fix config_libconfig_get for string
* !3876 Removing the duplicate loop in ULSCH power computation