[Bugfix][T106BUG-294]fix GPIO-function code

Only Configure:No
Affected branch:master
Affected module:AT+FACTORY
Is it affected on both ZXIC and MTK:only ZXIC,
Self-test:Yes,
Doc Update:NO.

Change-Id: Ib576032a98f2cd30356bd934964819f175a3e2ca
3 files changed