I've put an interim version of console-data in ftp.armlinux.org:/users/philb. This includes the keyboard map that you need for Acorn machines at the moment. It's called "acorn/ps2.uk.kmap"; with hindsight it was a pretty dim plan to include the "ps2." bit in there, but never mind.
This is probably needed to build the RiscPC boot disks; if it isn't already, it will be soon. Share and enjoy p.