staging: wilc1000: Revert "staging: wilc1000: remove spaces around '->'"

This reverts commit 6c2ab239 ("staging: wilc1000: remove spaces around '->'").
It had applied from a incorrectly commit a1b56a4c
("staging: wilc1000: wilc_wfi_cfgoperations.c: removes unnecessary log messages").

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