staging: kpc2000: remove extra white space in kpc2000_spi.c

Since whitespace should not appear between asterisk and
variable name in a declaration statement, remove it and
fix checkpatch.pl error "foo * bar" should be "foo *bar".

Signed-off-by: Naoto Kobayashi <naoto.kobayashi4c@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>