Recent mdadm versions introduced an interactive prompt when creating RAID arrays
without an explicit bitmap configuration:
"To optimize recovery speed, it is recommended to enable write-intent bitmap,
do you want to enable it now? [y/N]?"
This behavior was introduced by upstream change:
https://github.com/md-raid-utilities/mdadm/commit/e97c4e18c847803016aa60066cb6e57c528d83a6
In non-interactive environments such as Anaconda, this prompt blocks installation
and causes RAID creation to hang.
Fix this by explicitly enabling the internal bitmap when creating RAID arrays.