[BugFix][API-1295 1296 1302]fix get error password from wpa_supplicant.config file

Affected branch:MR3.0-xx && GSW3.0

Affected module:wifi

Is it addected on both ZXIC and MTK: only MTK

Self-test: Yes

Doc Update: No

Change-Id: If21a220bd2aad147ca387c200ad2ccf9f90b9ebd
1 file changed