Staging: octeon: Avoid several usecases of strcpy

strcpy was used multiple times in strcpy to write into dev->name.
I replaced them with strscpy.

Signed-off-by: Sandro Volery <sandro@volery.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20190911062359.GA14886@volery


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>