commit 8db2ad5a4d0f64c7cdae6a819d7e765fd34c4a5d
author Jeron Susan <jeron.susan@hi-p.com> Mon Sep 19 15:33:43 2016 +0800
committer Jeron Susan <jeron.susan@hi-p.com> Mon Sep 19 15:33:55 2016 +0800
tree d91a2b98544c75882e78f25fd5de7203cebe40c9
parent 4bf061d1aa534ac01d5aa7b59a1a8a3c79a8f12c

FPII-2438 : Vulnerabilities in Qualcomm components CVE-2016-6691 QC-CR#978452

Wifi gbk2utf module used weak logic to check if SSID is GBK encoded, it has chance that SSID wrongly converted and truncated, which in turn caused framework crash due to unhandled Exception. 
This change is to add isGkbString() to check if SSID is GBK encoded, which makes sure only SSID with GBK encoded will be converted.

Change-Id: Ib38fc0512d1cfb48fa2500bbcb18552e70dd5ac4