staging: wilc1000: fixes please don't use multiple blank lines

This patch fixes the checks reported by checkpatch.pl
for Please don't use multiple blank lines.

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>