gnu: ucx: Restore (and adapt) ioctl fallback patch....This is a followup to 4ebd4a58ce307874b18c30ffcd4852440e475ad5 which
removed the patch, but it was still necessary for some dependents.
* gnu/packages/patches/ucx-tcp-iface-ioctl.patch: New file.
* gnu/local.mk (dist_patch_DATA): Adjust accordingly.
* gnu/packages/fabric-management.scm (ucx)[source](patches): New field.