[DTV00910455] scan: fix hidden SSID may not work

[Description]
Fix hidden SSID may not work
In current code driver does not pass SSID number to firmware
Firmware count SSID number by SSID length != 0
But CFG80211 will insert one wildcard SSID
It leads firmware counts wrong number(real - 1)

This driver fix should be integrated before N9 firmware fix.
It is compatiable with both pached and non-pathed firmware.

Change-Id: Ie4bc61cb274117b58b0b2e2f95c2f00548739e47
CR-Id: DTV00910455
Signed-off-by: guo-jie.wang <guo-jie.wang@mediatek.com>
Feature: scan
2 files changed