staging: wilc1000: change parameter names in send_config_pkt

This patch changes the parameter names in send_config_pkt function as
the followings:

- u8Mode to mode
- pstrWIDs to wids
- u32WIDsCount to count
- drvHandler to drv

Signed-off-by: Tony Cho <tony.cho@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>