staging: kpc2000: remove extra spaces in core.c

Fixes checkpatch.pl error "foo __init  bar" should be "foo __init bar"
and "foo __exit  bar" should be "foo __exit bar".

Signed-off-by: Simon Sandström <simon@nikanor.nu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>