staging: vme: Simplfy string usage in vme_user_probe()

We can avoid usage of sprintf() and magic-sized array with simple pointer assignment.

Signed-off-by: Bojan Prtvar <prtvar.b@gmail.com>
Reviewed-by: wharms <wharms@bfs.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>