staging: kpc2000: blank lines after declaration

After the declarations in a function, there should be a blank line, so
that the declaration part is visibly separated from the rest.
This refactoring makes the code more readable.

Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>