staging: wilc1000: rename pu32TxqCount in wilc_wlan_handle_txq function

This patch rename pu32TxqCount to txq_count that is second argument of
wilc_wlan_handle_txq function to avoid camelcase.

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>