staging: wilc1000: rename counter in wilc_send_config_pkt

This patch renames the name of counter variable to i.
This change makes more readability because wilc_send_config_pkt has a
similar argument name as count.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>